# N9056R: 1958 Douglas DC-6A

- Status: Valid registration
- Airframe: [Douglas DC-6A](https://openairdocs.org/model/douglas-dc-6a) (registry code 3021706, 96 seats)
- Engine: [Pratt & Whitney R-2800 series](https://openairdocs.org/engine/pratt-whitney-r-2800-series) (registry code 52026)
- Data sheets: [TCDS 6A3](https://openairdocs.org/tcds/6A3) (The Boeing Company) (OpenAirDocs)
- Serial number: 45498
- Year built: 1958
- Type: Fixed wing multi engine
- Engine type: Reciprocating
- Airworthiness: Standard, transport
- Airworthiness date: August 29, 1979
- Certificate issued: August 23, 2000
- Expires: May 31, 2028
- Mode S code: AC84F9
- Registered owner: [Tatonduk Outfitters Ltd](https://openairdocs.org/faa-owner/TATONDUK%20OUTFITTERS%20LTD)
- Location: [Fairbanks, AK](https://openairdocs.org/faa-place/AK/Fairbanks)
- Owner type: Corporation
- Owner's area on the map: 64.0097° N, 144.6830° W: Placed by OpenAirDocs at the center of ZIP code 99706, within about 5 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=9056R
- Page: https://openairdocs.org/aircraft/N9056R

From the FAA registry file of October 24, 2026. ADs below are matched by the registry's airframe and engine model codes. They may apply; each AD's applicability can narrow it by serial number, part number or installed equipment. This is not a compliance determination. The registry lists only the engine series, so ADs for every Pratt & Whitney R-2800 model are included.

## ADs that may apply (OpenAirDocs): 80 in force

### Matched by airframe (Douglas DC-6A)

- [AD 2026-13-02](https://openairdocs.org/ad/2026-13-02): Navigation · Airbus Canada Limited Partnership 18, 49-46, 80-A and 555 more. Effective Jul 1, 2026
- [AD 2023-10-02](https://openairdocs.org/ad/2023-10-02): Indicating/Recording System, Navigation · Boeing 18, 23, 35 and 1,060 more. Effective May 26, 2023
- [AD 2017-06-05](https://openairdocs.org/ad/2017-06-05): Wings · Boeing DC-6, DC-6A, DC-6B and 3 more. Effective May 1, 2017
- [AD 2011-12-01](https://openairdocs.org/ad/2011-12-01): Equipment/Furnishings · Airbus A300 B2-1A, A300 B2-1C, A300 B2-203 and 268 more. Effective Aug 1, 2011
- [AD 93-14-12](https://openairdocs.org/ad/93-14-12): Crewmember Protective Breathing Equipment Units · Airbus A300 B2-1A, A300 B2-1C, A300 B2-203 and 201 more. Effective Sep 2, 1993
- [AD 93-11-07](https://openairdocs.org/ad/93-11-07): Structural Integrity · Boeing DC-6, DC-6A, DC-6B and 3 more. Effective Jul 22, 1993
- [AD 89-11-07](https://openairdocs.org/ad/89-11-07): Main Landing Gear Fittings · Boeing DC-6, DC-6A, DC-6B and 6 more. Effective Jun 23, 1989
- [AD 88-04-01](https://openairdocs.org/ad/88-04-01): Vertical Stabilizer Spar Fittings · Boeing DC-6, DC-6A, DC-6B and 3 more. Effective Mar 21, 1988
- [AD 80-12-02 R1](https://openairdocs.org/ad/80-12-02-R1): Wing Fittings, Stringer, Skin Cracks · Boeing DC-6, DC-6A, DC-6B and 3 more. Effective Apr 21, 1987
- [AD 83-20-04](https://openairdocs.org/ad/83-20-04): Horizontal Stabilizer Rear Spar Caps · Boeing DC-6, DC-6A, DC-6B and 3 more. Effective Oct 19, 1983
- [AD 80-22-07](https://openairdocs.org/ad/80-22-07): Nose Gear Torque Link · Boeing DC-6, DC-6A, DC-6B and 3 more. Effective Nov 3, 1980
- [AD 67-13-02](https://openairdocs.org/ad/67-13-02): Operating Limitations · Boeing DC-6, DC-6A, DC-6B and 6 more. Effective Dec 1, 1978
- [AD 61-05-02](https://openairdocs.org/ad/61-05-02): Emergency Exit Door Hinges · Boeing DC-6, DC-6A and DC-6B. Effective Dec 1, 1978
- [AD 54-23-01](https://openairdocs.org/ad/54-23-01): Fuselage Skin · Boeing DC-6, DC-6A, DC-6B and 3 more. Effective Dec 1, 1978
- [AD 74-17-01](https://openairdocs.org/ad/74-17-01): Regulator · Boeing 707-100 Long Body, 707-100B Long Body, 707-100B Short Body and 78 more. Effective Sep 16, 1974
- [AD 65-09-02](https://openairdocs.org/ad/65-09-02): Main Gear Torque Links · Boeing DC-6, DC-6A and DC-6B. Effective May 21, 1965
- [AD 64-03-03](https://openairdocs.org/ad/64-03-03): Blades · Boeing DC-6, DC-6A, DC-6B and 26 more. Effective Mar 1, 1964
- [AD 63-20-03](https://openairdocs.org/ad/63-20-03): Lower Center Spar Caps · Boeing DC-6, DC-6A and DC-6B
- [AD 62-25-02](https://openairdocs.org/ad/62-25-02): Main Landing Gear Shock Strut Cylinder · Boeing DC-6, DC-6A, DC-6B and 3 more
- [AD 61-23-04](https://openairdocs.org/ad/61-23-04): Spar Caps · Boeing DC-6, DC-6A and DC-6B. Effective Dec 7, 1961
- [AD 61-08-01](https://openairdocs.org/ad/61-08-01): Fuel Transfer · Boeing DC-6, DC-6A, DC-6B and 3 more. Effective May 9, 1961
- [AD 61-04-02](https://openairdocs.org/ad/61-04-02): Spar Caps · Boeing DC-6, DC-6A and DC-6B. Effective Mar 14, 1961
- [AD 60-02-05](https://openairdocs.org/ad/60-02-05): Spar Cap · Boeing DC-6, DC-6A and DC-6B
- [AD 53-05-01](https://openairdocs.org/ad/53-05-01): Propellers Slip Rings · Aero Spacelines 377, 377MG, 377SGT and 6 more
- [AD 60-03-04](https://openairdocs.org/ad/60-03-04): Propeller Blades · Boeing DC-6, DC-6A, DC-6B and 1 more
- [AD 59-13-06](https://openairdocs.org/ad/59-13-06): Lower Front Spar Cap · Boeing DC-6A and DC-6B
- [AD 58-23-02](https://openairdocs.org/ad/58-23-02): Stabilizer Spar Fittings · Boeing DC-6, DC-6A and DC-6B
- [AD 58-15-01](https://openairdocs.org/ad/58-15-01): Safety Belt Hook Assembly · Boeing DC-6, DC-6A, DC-6B and 3 more
- [AD 58-11-01](https://openairdocs.org/ad/58-11-01): Nose Wheel Retract Link · Boeing DC-6, DC-6A, DC-6B and 3 more
- [AD 56-13-01](https://openairdocs.org/ad/56-13-01): Wing Skin And Stringer Inspection · Boeing DC-6, DC-6A and DC-6B
- [AD 55-18-02](https://openairdocs.org/ad/55-18-02): Propeller Reverse Protective Device · Boeing DC-6, DC-6A and DC-6B
- [AD 55-15-04](https://openairdocs.org/ad/55-15-04): Propeller Feathering Lines · Boeing DC-6, DC-6A and DC-6B
- [AD 55-11-01](https://openairdocs.org/ad/55-11-01): Nose Gear Yoke End Fitting · Boeing DC-6, DC-6A, DC-6B and 3 more
- [AD 55-09-03](https://openairdocs.org/ad/55-09-03): Circuit Breaker · Boeing DC-6, DC-6A and DC-6B
- [AD 54-06-01](https://openairdocs.org/ad/54-06-01): Kiddie CO2 Discharge Valve · Boeing DC-6, DC-6A and DC-6B
- [AD 53-25-01](https://openairdocs.org/ad/53-25-01): Aileron Control System · Boeing DC-6, DC-6A and DC-6B
- [AD 53-08-02](https://openairdocs.org/ad/53-08-02): Center Wing Skin And Stringers · Boeing DC-6, DC-6A and DC-6B
- [AD 52-28-05](https://openairdocs.org/ad/52-28-05): Center Wing Lower Access Hole · Boeing DC-6, DC-6A and DC-6B
- [AD 52-27-02](https://openairdocs.org/ad/52-27-02): Outboard Front Spar Splice Plate · Boeing DC-6, DC-6A and DC-6B
- [AD 52-20-01](https://openairdocs.org/ad/52-20-01): Overvoltage Protection · Boeing DC-6, DC-6A and DC-6B
- [AD 52-18-02](https://openairdocs.org/ad/52-18-02): Spar Cap Rework · Boeing DC-6, DC-6A and DC-6B
- [AD 52-14-01](https://openairdocs.org/ad/52-14-01): Propeller Reversing Rework · Boeing DC-6, DC-6A and DC-6B
- [AD 51-10-01](https://openairdocs.org/ad/51-10-01): Wing Flap Operating Link · Boeing DC-6, DC-6A and DC-6B
- [AD 51-01-01](https://openairdocs.org/ad/51-01-01): Attachment Bolt Replacement · Boeing DC-6, DC-6A and DC-6B
- [AD 50-52-01](https://openairdocs.org/ad/50-52-01): Blades · Boeing DC-6, DC-6A, DC-6B and 4 more
- [AD 50-43-01](https://openairdocs.org/ad/50-43-01): Wheels · Boeing DC-6, DC-6A and DC-6B
- [AD 50-23-02](https://openairdocs.org/ad/50-23-02): Nose Gear Yoke End Fitting · Boeing DC-6, DC-6A and DC-6B
- [AD 50-18-02](https://openairdocs.org/ad/50-18-02): Engine Operation Placard · Boeing DC-6, DC-6A and DC-6B
- [AD 50-16-01](https://openairdocs.org/ad/50-16-01): Propeller Reverse Mechanism · Boeing DC-6, DC-6A and DC-6B
- [AD 49-46-01](https://openairdocs.org/ad/49-46-01): Vacuum System Fusible Plug · Boeing DC-4, DC-6, DC-6A and 1 more

### Matched by engine (Pratt & Whitney R-2800 series)

None in force.

### Historical (superseded or no longer in force)

- [AD 74-08-09 R2](https://openairdocs.org/ad/74-08-09-R2) (historical): Waste Receptacles · Aero Spacelines 377, 377MG, 377SGT and 268 more. Effective Jul 29, 1996

All 81: https://openairdocs.org/aircraft/N9056R/ads.md

## Information bulletins (advisory) (1 in force)

- [SAIB NM-15-03](https://openairdocs.org/saib/NM-15-03): Flight Controls. Issued Nov 24, 2014

## NTSB investigations

None matched to N9056R.

## FAA accident and incident reports

None matched to N9056R.

## Service difficulty reports (50)

As reported by operators and repair stations. Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.

- [SDR FXGA202212232233](https://openairdocs.org/sdr/FXGA202212232233), Dec 23, 2022: NONE. NONE. CRACKED TANG ON FRONT SPAR UPPER CAP. TO REPAIR A CRACKED TANG ON THE FORWARD EDGE OF THE FRONT SPAR UPPER CAP. USE THIS EO IN CONJUNCTION WITH STS EA 81-2022-1
- [SDR FXGA202110072132](https://openairdocs.org/sdr/FXGA202110072132), Oct 7, 2021: SKIN. CRACKED. CRACKED R/H HORIZONTAL STABILIZER LEADING EDGE AT STATION 109. TO REPAIR A CRACK LEADING EDGE SKIN ON THE R/H HORIZONTAL STABILIZER AT STATION 109. STOP DRILL C
- [SDR FXGA20200813001](https://openairdocs.org/sdr/FXGA20200813001), Aug 12, 2020: LINE. LEAKING. DURING APPROACH, HYDRAULIC PRESSURE AND QUANTITY WENT TO ZERO. DIVERTED. MAINTENANCE FOUND THE NR 3 ENGINE DRIVEN HYD PUMP HYDRALIC PRESSURE LINE LEAKING FROM H
- [SDR FXGA201909261976](https://openairdocs.org/sdr/FXGA201909261976), Sep 26, 2019: ANGLE. BENT. FORWARD PRESSURE BULKHEAD BEAM REPAIR. TO REPAIR A BENT ANGLE ON THE FORWARD PRESSURE BULKHEAD, ON THE WHEEL WELL SIDE. AT F/STA 0. REPAIR RT END OF LOWER HORIZ
- [SDR FXGA201908281969](https://openairdocs.org/sdr/FXGA201908281969), Aug 28, 2019: FITTING. CORRODED. REPLACEMENT OF CORRODED FITTING AT STRINGER 17 W/STA 60L OUTBOARD. TO REPLACE CORRODED FITTINGS ON STRINGER 17L, OUTBOARD OF W/STA 60L. ON WING STRINGER 20L, RE
- [SDR FXGA201908281970](https://openairdocs.org/sdr/FXGA201908281970), Aug 28, 2019: TEE FITTING. CORRODED. REPLACEMENT OF TEE ANGLE AT L/H OUTER WING AT W/STA 421. AFTER REMOVAL OF THE L/H OUTER WING THE CENTER SPAR TEE ANGLE (W/STA 421) WAS FOUND CORRODED. ON L/H OU
- [SDR FXGA2019082820191](https://openairdocs.org/sdr/FXGA2019082820191), Aug 28, 2019: TEE FITTING. CORRODED. REPLACEMENT OF TEE ANGLE AT L/H OUTER WING AT W/STA 421. AFTER REMOVAL OF THE L/H OUTER WING THE CENTER SPAR TEE ANGLE (W/STA 421) WAS FOUND CORRODED. ON L/H OU
- [SDR FXGA201908261967](https://openairdocs.org/sdr/FXGA201908261967), Aug 26, 2019: SKIN. CRACKED. MULTIPLE WING SKIN CRACKS AT W/STA 168R BETWEEN STRINGERS 6 AND 11. MULTIPLE SMALL CRACKS WERE FOUND ON THE UPPER WING SKIN IN THE HELL HOLE AREA AROUND W/STA 1
- [SDR FXGA201908161966](https://openairdocs.org/sdr/FXGA201908161966), Aug 16, 2019: SKIN. CORRODED. FUSELAGE SKIN CORRODED AT LOWER EDGE OF MAIN CARGO DOOR. TO REPAIR CORRODED FUSELAGE SKIN AT LOWER EDGE OF MAIN CARGO DOOR BETWEEN F/STA 768 AND 790. CUT-OUT DA
- [SDR FXGA2019081261963](https://openairdocs.org/sdr/FXGA2019081261963), Aug 6, 2019: STRINGER. CRACKED. NR 4 NACELLE STRINGER AND SKIN SPLICE. TO SPLICE NR 4 NACELLE STRINGERS NR 1 AT STATION 436 AND STRINGER 32 AT STATION 432.5. THE NACELLE SKIN WILL BE SPLICED A
- [SDR FXGA201908061964](https://openairdocs.org/sdr/FXGA201908061964), Aug 6, 2019: STRINGER SPLICE. CORRODED. FUSELAGE STRINGER SPLICES ON STRINGER 32L BETWEEN F/STA 625 AND 638, STRINGER REPAIRED IAW A&B OVERHAUL MANUAL FIGURE 12-2.
- [SDR FXGA201908051958](https://openairdocs.org/sdr/FXGA201908051958), Jul 25, 2019: SPAR WEB. CORRODED. CORRODED REAR SPAR WEB AT W/STA 359L. TO REPAIR A CORRODED REAR SPAR WEB AT W/STA 359L. CUT OUT CORRODED AREA AND REPAIR PER DC-6 A&B OVERHAUL MANUAL FIGURE 13-
- [SDR FXGA2019080521957](https://openairdocs.org/sdr/FXGA2019080521957), Jul 25, 2019: SPAR. CRACKED. CRACKED OUTER WING CENTER SPAR WEB AT W/STA 435L. TO REPAIR A CRACKED OUTER WING CENTER SPAR WEB AT W/STA 435L. PERFORM OUTER WING CENTER SPAR WEB REPAIR PER DC
- [SDR FXGA2019080541956](https://openairdocs.org/sdr/FXGA2019080541956), Jul 24, 2019: SKIN. CORRODED. FUSELAGE SKIN REPLACEMENT AND STRINGER REPAIRS BEHIND CABIN HEATER EXHAUST. TO REPLACE A CORRODED FUSELAGE SKIN FROM F/STA 596 TO 662; REPAIR CORRODED STRINGER 
- [SDR FXGA2019080591954](https://openairdocs.org/sdr/FXGA2019080591954), Jul 19, 2019: SKIN. CORRODED. FUSELAGE SKIN CORRODED AT F/STA 801 STRINGER 8L. TO REPAIR CORRODED FUSELAGE SKIN LAP AFT OF THE MAIN CARGO DOOR AT F/STA 801 STRINGER 8L. CUT-OUT DAMAGE AND RE
- [SDR FXGA201907091953](https://openairdocs.org/sdr/FXGA201907091953), Jul 9, 2019: SKIN. CORRODED. FUSELAGE SKIN CORRODED ABOVE FORWARD BAG PIT DOOR. TO REPAIR CORRODED FUSELAGE SKIN ABOVE FORWARD BAG PIT DOOR, AT F/STA 162 BETWEEN STRINGER 23R & 24R. CUT-OUT
- [SDR FXGA201906281950](https://openairdocs.org/sdr/FXGA201906281950), Jun 28, 2019: RIB. CRACKED. LEADING EDGE RIB CAP REPAIR AT W/STA 184R. TO REPAIR A CRACKED LEADING EDGE RIB TEE CAP AT W/STA 184R. CUT CRACKED TEE CAP ANGLE IN A SUITABLE LOCATION FORWARD 
- [SDR FXGA201909051942](https://openairdocs.org/sdr/FXGA201909051942), May 17, 2019: SKIN. CORRODED. CORRODED FUSELAGE SKIN REPAIRS AROUND MULTIPLE CABIN WINDOWS. TO REPAIR CORRODED FUSELAGE SKIN AROUND CABIN WINDOWS AT THE FOLLOWING LOCATIONS: F/STA 285 LEFT S
- [SDR FXGA201905171943](https://openairdocs.org/sdr/FXGA201905171943), May 17, 2019: DOUBLER. CRACKED. NR 2 ALT ACCESS DOOR DOUBLER REPLACEMENT. TO REPLACE A CRACKED ACCESS DOOR DOUBLER AT NR 2 ATLERNATE TANK. REMOVE AND REPLACE NR 2 ALTERNATE TANK ACCESS DOOR DO
- [SDR FXGA201905141940](https://openairdocs.org/sdr/FXGA201905141940), May 14, 2019: SKIN. CORRODED. CORRODED FUSELAGE SKIN AT F/STA 150 STRINGER 33L. CORROSION WAS FOUND 2 INCHES FORWARD OF AN EXISTING REPAIR MADE PER OVERHAUL MANUAL FIGURE 12-22. REMOVE EXIST
- [SDR FXGA201908051955](https://openairdocs.org/sdr/FXGA201908051955), May 8, 2019: FITTING. CORRODED. REPLACEMENT OF CORRODED FITTING AT STRINGER 20 W/STA 60L OUTBOARD. TO REPLACE CORRODED FITTINGS ON STRINGER 20L, OUTBOARD OF W/STA 60L. ON WING STRINGER 20L, RE
- [SDR FXGA201905081937](https://openairdocs.org/sdr/FXGA201905081937), May 8, 2019: FITTING. CORRODED. REPLACEMENT OF CORRODED FITTING AT W/STA 60L STRINGER 21L. TO REPLACE CORRODED FITTINGS ON STRINGER 21L, INBOARD AND OUTBOARD OF W/STA 60L. ON WING STRINGER 21L
- [SDR FXGA2019062681938](https://openairdocs.org/sdr/FXGA2019062681938), May 8, 2019: FITTING. CORRODED. REPLACEMENT OF CORRODED FITTING AT W/STA 60R STRINGER 21. TO REPLACE CORRODED FITTING INBOARD AND OUTBOARD OF W/STA 60R. REMOVE INBOARD AND OUTBOARD RIGHT HAND 
- [SDR FXGA201807311816](https://openairdocs.org/sdr/FXGA201807311816), Jul 31, 2018: SKIN. CHAFED. CHAFED SKIN ON RT FLAP UPPER SKIN AT W/STA 370R. THE RIGHT HAND FLAP UPPER SKIN WAS FOUND CHAFED ON THE LEADING EDGE SECTION AT W/STA 370R. REMOVE DAMAGE IN A R
- [SDR FXGA201708031715](https://openairdocs.org/sdr/FXGA201708031715), Aug 2, 2017: SKIN. CRACKED. CRACKED SKIN AT STATION 239 AND STRINGER 33 1/2. REPAIR TO SKIN CRACK AT STATION 239. INSTALL REPAIR IN ACCORDANCE WITH DC6 OVERHAUL MANUAL FIGURE 12-21 AND 12-
- [SDR 2017F00172](https://openairdocs.org/sdr/2017F00172), Jul 19, 2017: LINE. CRACKED. COMPLETE HYDRAULIC SYSTEM FAILURE, EMERGENCY LANDING PROCEDURES FOLLOWED. REPLACED HYDRAULIC PRESSURE LINE NR 2. FOUND CRACK AT B-NUT. REPLACED THE LINE. PREFOR
- [SDR FXGA2016080916162](https://openairdocs.org/sdr/FXGA2016080916162), Aug 9, 2016: STRINGER. CORRODED. CORRODED STRINGER 12L AT BS 1049. REPAIRED THE STRINGER IAW A&B OVERHAUL MANUAL FIGURE 12-2.
- [SDR FXGA201607181618](https://openairdocs.org/sdr/FXGA201607181618), Jul 18, 2016: SKIN. DAMAGED. FUSELAGE SKIN AND STRINGER REPAIR AT BS 341, STRINGER 27L. TO REPAIR THE CORRODED SKIN AND STRINGER 27L AT BS 341. CUT-OUT OF THE CORRODED SKIN AND REPAIR PER A
- [SDR FXGA201607191616](https://openairdocs.org/sdr/FXGA201607191616), Jul 11, 2016: SKIN. DAMAGED. SKIN CORROSION AND HOLE IN SKIN AFT OF LOWER CORNER OF AFT BELLY DOOR BETWEEN STRINGERS 30 AND 31R. REPAIRED THE SKIN. REMOVE DAMAGE & PREFORM REPAIR IAW OVERHA
- [SDR FXGA201511111542](https://openairdocs.org/sdr/FXGA201511111542), Nov 11, 2015: BULKHEAD. DAMAGED. HOLE IN BULKHEAD AT FS 341 ABOVE STRINGER 32R. REPAIRED DAMAGED BULKHEAD IAW DC-6A & B OVERHAUL MANUAL FIGURE 12 - 6.
- [SDR FXGA201510281541](https://openairdocs.org/sdr/FXGA201510281541), Nov 10, 2015: FLOOR SKIN. CORRODED. CORRODED FLOOR SKIN BETWEEN FS 520 & 540. REPAIRED CORRODED SKIN IAW DC-6 A & B OVERHAUL MANUAL FIGURE 12-15.
- [SDR FXGA201510291540](https://openairdocs.org/sdr/FXGA201510291540), Oct 28, 2015: FLOOR SKIN. CORRODED. CORRODED FLOOR SKIN, BETWEEN FS 866 & 902, AROUND RBL 10. REPAIR CORRODED SKIN IAW DC-6 A & B, OVERHAUL MANUAL FIG 12-16.
- [SDR FXGA201503151512](https://openairdocs.org/sdr/FXGA201503151512), Mar 23, 2015: SKIN. CHAFED. CHAFED WING SKIN AT WS 297R, STRINGER 26R. TO REPAIR CHAFING, CAUSED BY A FAIRING, BEAVER TAIL, RUBBING AGAINST THE LOWER WING SKIN AT WS 297R, STRINGER 26R. CU
- [SDR FXGA20150323001](https://openairdocs.org/sdr/FXGA20150323001), Mar 23, 2015: STRINGER. CORRODED. REPAIR OF CORRODED FUSELAGE STRINGER FS 541, STRINGER 33L. CUT DAMAGED STRINGER. REMOVE CORRODED SECTION & INSTALLED NEW STRINGER SECTION & SPLICES IAW DC6 A & 
- [SDR FXGA20141104001](https://openairdocs.org/sdr/FXGA20141104001), Oct 31, 2014: UNKNOWN. LEAKING. HYDRAULIC FAILURE, LOSS OF PRESS & QTY EXPERIENCED WHILE TURNING ONTO RUNWAY 33.
- [SDR FXGA201408121428](https://openairdocs.org/sdr/FXGA201408121428), Aug 12, 2014: FRAME. CRACKED. FRAME CRACK AT FS 29.5L. THE LT FRAME RAIL LOCATED AT FS 29.5L CRACKED JUST ABOVE THE FWD HINGE POINT OF LT NLG DOOR. A NEW SECTION OF FRAME WILL BE SPLICED IN 
- [SDR FXGA2014010901](https://openairdocs.org/sdr/FXGA2014010901), Jan 9, 2014: STRUCTURE. CORRODED. CORROSION FOUND ON FRONT SPAR OF LT REAR HYD COMPARTMENT APPROXIMATELY STATION 412 FROM STRINGERS 26 -30. REPLACED STRINGER 25L FROM SPLICE AT STATION 341 TO IT
- [SDR FXGA201305131344](https://openairdocs.org/sdr/FXGA201305131344), May 13, 2013: SKIN. CORRODED. CORROSION ON WING SKIN BETWEEN LWS 167 & WS 216. REPAIRED IAW EO 1344.
- [SDR FXGA201212071292](https://openairdocs.org/sdr/FXGA201212071292), Dec 7, 2012: FLOOR SUPPORT. CORRODED. CORRODED FLOOR SUPPORT BETWEEN BS 630 & 791L. R & R FLOOR SUPPORT.
- [SDR FXGA201210051279](https://openairdocs.org/sdr/FXGA201210051279), Oct 5, 2012: STRUCTURE. CRACKED. NR 4 ENGINE AIRFOIL ANTI-ICE HEATER EXHAUST OPENING CRACKING. REPAIR OF CRACKING AROUND AIRFOIL ANTI-ICE HEATER EXHAUST DUCT ON NR 4 ENG EO 1279.
- [SDR FXGA201208301267](https://openairdocs.org/sdr/FXGA201208301267), Aug 30, 2012: STRUCTURE. CORRODED. HEATER COMPARTMENT CORRODED BS 500 - 541. REPAIRED IAW EO 1267.
- [SDR FXGAN9056R2](https://openairdocs.org/sdr/FXGAN9056R2), Oct 6, 2011: SKIN. CORRODED. FOUND SKIN CORROSION FUS STA 157 AT STR 31L. REPAIRED IAW EAC EO 1133 AND 8110-3 DATED 1-19-05.
- [SDR FXGAN9056R8](https://openairdocs.org/sdr/FXGAN9056R8), Oct 3, 2011: SKIN. CORRODED. SKIN CORROSION DISCOVERED AT FUS STA 780 CENTERED UNDER FUS STR 32L. REPAIRED IAW EAC EO 11321 AND 8110-3 DATED 9/29/2011.
- [SDR FXGAN9056R7](https://openairdocs.org/sdr/FXGAN9056R7), Oct 3, 2011: STRUCTURE. CORRODED. CORROSION DISCOVERED ON THE CABIN FLOOR FROM STA 625 TO FUS STA 661. REPAIRED IAW EAC EO 1129 AND 8110-3 DATED9/27/2011.
- [SDR FXGAN9056R6](https://openairdocs.org/sdr/FXGAN9056R6), Oct 3, 2011: STRINGER. CORRODED. CORROSION FOUND ON FUS STR 32L AT FUS 780. REPAIRED IAW WITH EAC EO 1131 AND 8110-3 DATED 9/29/2011.
- [SDR FXGA20111003005](https://openairdocs.org/sdr/FXGA20111003005), Oct 3, 2011: SKIN. DENTED. RT WING HAD A LARGE DENT FROM STA 655 TP 675. REPAIRED IAW EO 1128 AND 8110-3 DATED 9-29-2011.
- [SDR FXGA20111003002](https://openairdocs.org/sdr/FXGA20111003002), Oct 3, 2011: FLOOR SKIN. CORRODED. FOUND CORRODED FLOOR SKIN AT FUS STA 120. REPAIRED IAW EAC EO 1135 AND 8110-3 DATED 9-20-11.
- [SDR FXGA20111003001](https://openairdocs.org/sdr/FXGA20111003001), Oct 3, 2011: SKIN. CORRODED. FOUND SKIN CORROSION AT FUS STA 157 BETWEEN STR 33L AND 33R. REPAIRED IAW EAC EO 1134 AND 8110-3 DATED 9-20-2011.
- [SDR FXGAN9056R1](https://openairdocs.org/sdr/FXGAN9056R1), Oct 3, 2011: SKIN. CORRODED. FUSELAGE SKIN FOUND CORRODED FUS STA 89 TO STA 111 BETWEEN STR 10L AND 13L. REPAIRED IAW EAC EO 1130 AND AND 8110-3 DATED 9/15/2011.
- [SDR FXGA9056R](https://openairdocs.org/sdr/FXGA9056R), Aug 20, 2010: STRUCTURE. CORRODED. DEEP CORROSION FOUND AT MULTIPLE NUT PLATE HOLES ALONG THE NR 2 NACELLE FILLET FAIRING BETWEEN THE FRONT AND CENTER SPAR. REPAIRED PER EAC EO 1044 AND 8110-3 DA

## STCs that may be installed (OpenAirDocs) (68, first 50)

Approved for this aircraft's airframe or engine model, in force first, then newest. The registry doesn't record which STCs an aircraft has; its records do.

### Approved for the airframe (Douglas DC-6A)

- [STC SA2622NM](https://openairdocs.org/stc/SA2622NM): Installation of Precise Flight Pulselite Control Unit in landing/taxi system. (767-200 B17) (DHC-8 101). Precise Flight Inc
- [STC ST02962AT](https://openairdocs.org/stc/ST02962AT): Installation of L3 Communications Traffic Alert and Collision Avoidance System Model 791A (TCAS791A). Woven Electronics, LLC
- [STC SA863EA](https://openairdocs.org/stc/SA863EA): Incorporation of DME Corporation emergency evacuation slide lighting system. Astronics Luminescent Systems Inc. Lists DC-6 Series
- [STC ST02580AT](https://openairdocs.org/stc/ST02580AT): Lithium cell battery pack to replace currently approved alkaline battery pack used in escape slide emergency light system. Astronics Luminescent Systems Inc
- [STC SA02268CH](https://openairdocs.org/stc/SA02268CH): Installation of Airwolf Filter Corp. Air Oil Separator. Airwolf Filter Corporation
- [STC SA01282NY](https://openairdocs.org/stc/SA01282NY): Installation of Airwolf remote mounted engine oil filter kit AFC-K015 on aircraft powered by Pratt & Whitney radial reciprocating engine Series R-985, R-1340 and R-1830. Airwolf Filter Corporation
- [STC ST02965AT](https://openairdocs.org/stc/ST02965AT): Installation of Collins PN101 Compass System. B/E Aerospace Inc
- [STC ST02963AT](https://openairdocs.org/stc/ST02963AT): Installation of Collins ALT-55B Radio Altimeter System. B/E Aerospace Inc
- [STC ST334CH](https://openairdocs.org/stc/ST334CH): Installation of Superflite 102 fabric. Aviation Products Systems Inc
- [STC SA1311WE](https://openairdocs.org/stc/SA1311WE): Installation of a United Data Control P/N V557 Voice Recorder in Boeing DC-6, DC-6A, DC-6B aircraft. United Airlines Inc
- [STC ST02275AK](https://openairdocs.org/stc/ST02275AK): Approval for Douglas DC-6A and DC-6B aircraft operations on runways with slopes in excess of 2% gradient up to 6% gradient. Everts Air Cargo
- [STC ST981SO](https://openairdocs.org/stc/ST981SO): Deactivation of the cabin pressurization system, conversion of the cargo compartment to a class 'E' compartment, and modification of the ventilation system. Everts Air Cargo
- [STC SA363SO](https://openairdocs.org/stc/SA363SO): Cockpit voice recorder. Delta Airlines Inc. Lists DC-6 Series
- [STC SA8075SW](https://openairdocs.org/stc/SA8075SW): Installation of fiberglass covering. (M-62 SERIES PT-19) (G-73 SCHWEIZER). Razorback Fabrics Inc
- [STC SA1008WE](https://openairdocs.org/stc/SA1008WE): Installation of Poly-Fiber covering material. Poly-Fiber Inc
- [STC SA1367GL](https://openairdocs.org/stc/SA1367GL): Surrendered and incorporated into STC ST334CH. Cooper Aviation Supply Company, Inc
- [STC ST01608CH](https://openairdocs.org/stc/ST01608CH): Installation of brake assemblies, p/n 9560164-2 or 9560166, with non-asbestos linings, p/ns 5013028 and 5013029. Aircraft Braking Systems Corporation
- [STC SA02168AK](https://openairdocs.org/stc/SA02168AK): Installation of hourmeter airspeed switch. For unpressurized aircraft only. Pressurized aircraft must have pressurization system deactivated. Avalaska Inc
- [STC ST02166AK](https://openairdocs.org/stc/ST02166AK): Installation of UPS Aviation Technologies, Inc., GX50/60 GPS Navigator, Capstone configured MX20 Multi-Function display, and UAT transceiver. Northern Air Cargo Inc
- [STC SA1753WE](https://openairdocs.org/stc/SA1753WE): Installation of VIP core assembly P/N VIP-106-18. Vibration Isolation Products Corp
- [STC SA4-525](https://openairdocs.org/stc/SA4-525): Installation of VIP P/N 106-1J engine mount core. Vibration Isolation Products Corp
- [STC SA1351WE](https://openairdocs.org/stc/SA1351WE): Replace existing fabric on wings, fuselage, empennage, and/or control surfaces, with Ceconite101 material. (262A Series -12). Ceconite Inc
- [STC SA1479WE](https://openairdocs.org/stc/SA1479WE): Installation of a Benson portable buffet at fuselage station 141.375. Evergreen Air Center Inc
- [STC SA1769NM](https://openairdocs.org/stc/SA1769NM): Installation of Bulk Liquid Cargo Tanks. Sorm Inc
- [STC SA722AL](https://openairdocs.org/stc/SA722AL): Revised limitations to permit operation when takeoff warning system has not been installed. Ball Brothers, Inc
- [STC SA1033NW](https://openairdocs.org/stc/SA1033NW): Installation of a bulk liquid cargo tank system. Flight Structures Inc
- [STC SA4198WE](https://openairdocs.org/stc/SA4198WE): Forward and rear cargo door latch assembly, P/N TAS-3361150, and fitting installation, P/N TAS05359955-8002. Time Avn Services, Inc
- [STC SA1506CE](https://openairdocs.org/stc/SA1506CE): Engine driven cabin air compressors and associated cabin pressurization controls removed. Petroleum Air Transport, Inc
- [STC SA1083SO](https://openairdocs.org/stc/SA1083SO): Installation of four Pratt & Whitney R-2800-99W engines and Hamilton Standard propellers. Bellomy-Lawson Aviation Inc
- [STC SA1066SO](https://openairdocs.org/stc/SA1066SO): Alternate installation of hydraulic pump utilizing existing engine drive. Bellomy-Lawson Aviation Inc
- [STC SA770SO](https://openairdocs.org/stc/SA770SO): Installation of cargo pallet and container loading and restraint system. Aeronautical Engineers, Inc
- [STC ST484SO](https://openairdocs.org/stc/ST484SO): Installation of cargo restraining bulkhead. Aeronautical Engineers, Inc
- [STC ST964SO](https://openairdocs.org/stc/ST964SO): Installation of cargo interior, installation of cargo restraint and modification of pressurization system. Bellomy-Lawson Aviation Inc
- [STC SA326NW](https://openairdocs.org/stc/SA326NW): Installation of a bulk liquid cargo tank system. Pacific Alaska Airlines Inc
- [STC ST974SO](https://openairdocs.org/stc/ST974SO): Installation of extra crew seating and air distribution system. Bellomy-Lawson Aviation Inc
- [STC SA1744WE](https://openairdocs.org/stc/SA1744WE): Installation of oil filter assemblies. Nelson Filter
- [STC ST528SO](https://openairdocs.org/stc/ST528SO): Installation of cargo restraining bulkhead. Bellomy-Lawson Aviation Inc. Lists DC-6 Series
- [STC ST34GL](https://openairdocs.org/stc/ST34GL): Remove cabin pressurization system, modify cabin air heating and ventilating system. Zantop Intn'l Airlines, Inc
- [STC ST671SO](https://openairdocs.org/stc/ST671SO): Installation of cargo loading/ restraint system for palletized cargo. Jet Avion Corp
- [STC SA1363WE](https://openairdocs.org/stc/SA1363WE): Installation of Fairchild Industrial Products Model A100 cockpit voice recorder system. Saturn Airways, Inc
- [STC SA470CE](https://openairdocs.org/stc/SA470CE): Installation of Fairchild cockpit voice recorder Model A-100. Universal Airlines, Inc
- [STC SA1-580](https://openairdocs.org/stc/SA1-580): Television broadcasting equipment. Midwest Program on Airborne Television Instruction. Lists DC-6 Series
- [STC SA1082WE](https://openairdocs.org/stc/SA1082WE): Interior arrangements. AiResearch Aivation Service Co. Lists DC-6 Series
- [STC SA1148WE](https://openairdocs.org/stc/SA1148WE): Interior modifications. Jay- Dee Aircraft Supply Co. Lists DC-6 Series
- [STC SA12SO](https://openairdocs.org/stc/SA12SO): Altimeter vibrators. Pan American World Airways Inc. Lists DC-6 Series
- [STC SA1302WE](https://openairdocs.org/stc/SA1302WE): Fairchild A100 voice recorder. Western Airlines Inc. Lists DC-6 Series
- [STC SA1313WE](https://openairdocs.org/stc/SA1313WE): Fairchild A100 voice recorder. World Air Center. Lists DC-6 Series
- [STC SA1517WE](https://openairdocs.org/stc/SA1517WE): Interior arrangement for 97 occupants, DME installation, interior emergency lighting installation. Mercer Enterprises. Lists DC-6 Series
- [STC SA229SO](https://openairdocs.org/stc/SA229SO): B-400 oil separator. Air Carrier Eng Service Inc. Lists DC-6 Series
- [STC SA4-1169](https://openairdocs.org/stc/SA4-1169): Interior modifications. AiResearch Aivation Service Co. Lists DC-6 Series

All 68: https://openairdocs.org/aircraft/N9056R/stcs.md

## Earlier aircraft with N9056R

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N9056R before.

- [Cancelled 1977-09-06](https://openairdocs.org/deregistered/N9056R-1977-09-06): Beech D-45, S/N BG-418. Owner: [North Carolina Dept Of Conservation & Development](https://openairdocs.org/faa-owner/NORTH%20CAROLINA%20DEPT%20OF%20CONSERVATION%20%26%20DEVELOPMENT), [Raleigh, NC](https://openairdocs.org/faa-place/NC/Raleigh)

## Related

- Other Douglas DC-6A aircraft: https://openairdocs.org/model/douglas-dc-6a/aircraft.md
- The Pratt & Whitney R-2800 series engine: https://openairdocs.org/engine/pratt-whitney-r-2800-series.md

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