# N135AA: 1985 Beech C90A

- Status: Valid registration
- Airframe: [Beech C90A](https://openairdocs.org/model/beech-c90a) (registry code 1152911, 9 seats)
- Engine: [Pratt & Whitney Canada PT6A-21](https://openairdocs.org/engine/pratt-whitney-canada-pt6a-21) (registry code 52172)
- Data sheets: [TCDS 3A20](https://openairdocs.org/tcds/3A20) (Textron Aviation Inc.), [TCDS E4EA](https://openairdocs.org/tcds/E4EA) (Pratt & Whitney Canada Corp.) (OpenAirDocs)
- Serial number: LJ-1112
- Year built: 1985
- Type: Fixed wing multi engine
- Engine type: Turbo-prop
- Airworthiness: Standard, normal
- Airworthiness date: April 9, 1985
- Certificate issued: May 25, 2024
- Expires: May 31, 2031
- Mode S code: A08DC5
- Registered owner: [Kentucky King Air LLC](https://openairdocs.org/faa-owner/KENTUCKY%20KING%20AIR%20LLC)
- Location: [Hazard, KY](https://openairdocs.org/faa-place/KY/Hazard)
- Owner type: LLC
- Owner's area on the map: 37.2605° N, 83.1982° W: Placed by OpenAirDocs: center of Hazard, KY, within about 2 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=135AA
- Page: https://openairdocs.org/aircraft/N135AA

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.

## ADs that may apply (OpenAirDocs): 37 in force

### Matched by airframe (Beech C90A)

- [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 2006-16-18 R1](https://openairdocs.org/ad/2006-16-18-R1): Installing a warning placard on the TAWS/RMI · Airbus A300 B2-1A, A300 B2-1C, A300 B2-203 and 100 more. Effective Jul 18, 2008
- [AD 2007-12-06](https://openairdocs.org/ad/2007-12-06): Flight controls · Textron B200, B200C, B300 and 2 more. Effective Jul 16, 2007
- [AD 2006-13-10](https://openairdocs.org/ad/2006-13-10): Rudder trim tab · Textron 100, 65-90, 65-A90 and 18 more. Effective Aug 7, 2006
- [AD 2005-01-19](https://openairdocs.org/ad/2005-01-19): Mode S transponders · GARMIN International GTX 330D, GTX 330, GTX 33D and 830 more. Effective Feb 23, 2005
- [AD 2005-01-04](https://openairdocs.org/ad/2005-01-04): Fuel hose · Textron 100, 200, 200C and 29 more. Effective Feb 22, 2005
- [AD 2004-23-02](https://openairdocs.org/ad/2004-23-02): Nose Landing Gear (NLG) Fork · Textron 100, 1900, 1900C and 50 more. Effective Dec 23, 2004
- [AD 2004-17-02](https://openairdocs.org/ad/2004-17-02): Cross shaft attach bolt · Textron 100, 1900, 1900C and 52 more. Effective Oct 4, 2004
- [AD 2003-13-16](https://openairdocs.org/ad/2003-13-16): Aft Pressure Bulkhead of Fuselage · Textron 100, 200, 200C and 33 more. Effective Aug 25, 2003
- [AD 2003-02-03](https://openairdocs.org/ad/2003-02-03): Airstair door and emergency exits · Textron 100, 200, 2000 and 46 more. Effective Mar 7, 2003
- [AD 2002-14-19](https://openairdocs.org/ad/2002-14-19): Collins Air Data Computers (ADC) · Boeing DC-8-11, DC-8-12, DC-8-21 and 36 more. Effective Aug 23, 2002
- [AD 2002-09-12](https://openairdocs.org/ad/2002-09-12): Rivets in Left- and Right-Hand Nacelle and Spar Assembly · Textron C90A. Effective Jun 21, 2002
- [AD 2002-01-10](https://openairdocs.org/ad/2002-01-10): Main Landing Gear Torque Knees · Textron 65-90, 65-A90, 65-A90-1 and 6 more. Effective Feb 22, 2002
- [AD 2001-23-17](https://openairdocs.org/ad/2001-23-17): GNS 430 units · Cessna 172, 182, 206 and 209 more. Effective Dec 28, 2001
- [AD 2001-15-17](https://openairdocs.org/ad/2001-15-17): Transponder Control Panels · Bombardier ATR42-200, ATR42-300, ATR42-320 and 30 more. Effective Aug 20, 2001
- [AD 2001-11-03](https://openairdocs.org/ad/2001-11-03): Blower Motor Circuit · Textron 1900D, 58, 58A and 5 more. Effective Jul 20, 2001
- [AD 99-18-15](https://openairdocs.org/ad/99-18-15): Landing Gear Emergency Hand Pumps · Textron 1900D, B200, B300 and 1 more. Effective Sep 27, 1999
- [AD 99-10-07](https://openairdocs.org/ad/99-10-07): Elevator Control Cable · Textron 65-90, 65-A90, 65-A90-1 and 9 more. Effective Jun 8, 1999
- [AD 99-09-10](https://openairdocs.org/ad/99-09-10): Landing Gear Hand Pump · Textron 200CT, 300, A200CT (C-12D) and 19 more. Effective Jun 7, 1999
- [AD 99-09-15](https://openairdocs.org/ad/99-09-15): Flight Control Mechanism · Textron 1900D, 58, 58A and 5 more. Effective May 18, 1999
- [AD 98-25-02](https://openairdocs.org/ad/98-25-02): Top-mounted Antenna · Bell Helicopter Textron Canada 407, 172, 172A and 243 more. Effective Dec 22, 1998
- [AD 97-25-03](https://openairdocs.org/ad/97-25-03): AFM - Limitations - Power Levers · Textron 100, 1900, 1900C and 44 more. Effective Jan 21, 1998
- [AD 97-25-01](https://openairdocs.org/ad/97-25-01): Outflow/Safety Valve · Textron 100, 200, 2000 and 38 more. Effective Jan 11, 1998
- [AD 97-23-17](https://openairdocs.org/ad/97-23-17): Pneumatic Tubing · Textron 200, 200C, 200CT and 30 more. Effective Dec 29, 1997
- [AD 97-06-06](https://openairdocs.org/ad/97-06-06): Pilot and Copilot Chairs Locking Pins · Textron 100, 1900, 1900C and 43 more. Effective May 9, 1997
- [AD 96-11-12](https://openairdocs.org/ad/96-11-12): Elevator Electric Trim Tab Or Autopilot System · Textron C90A. Effective Jul 24, 1996
- [AD 94-01-06](https://openairdocs.org/ad/94-01-06): Traffic Alert and Collision Avoidance System II Processors · Airbus A300 B2-1A, A300 B2-1C, A300 B2-203 and 176 more. Effective Feb 4, 1994
- [AD 93-17-01](https://openairdocs.org/ad/93-17-01): Leading Edge Fuel Cell Nipples · Textron B90, C90 and C90A. Effective Oct 12, 1993
- [AD 92-15-01](https://openairdocs.org/ad/92-15-01): Truss-To-Firewall Bolts · Textron 100, 200, 200C and 40 more. Effective Aug 21, 1992
- [AD 89-25-10](https://openairdocs.org/ad/89-25-10): Wing Main Spar Inspection · Textron 100, 65-90, 65-A90 and 10 more. Effective Jan 4, 1990
- [AD 89-22-14](https://openairdocs.org/ad/89-22-14): Aileron Flutter · Textron 200, 200C, 200CT and 9 more. Effective Nov 17, 1989
- [AD 87-04-24](https://openairdocs.org/ad/87-04-24): Elevator Trim Cable System · Textron 1900, 1900C, 200 and 28 more. Effective Apr 14, 1987

### Matched by engine (Pratt & Whitney Canada PT6A-21)

- [AD 2014-11-05](https://openairdocs.org/ad/2014-11-05): Reinforcement liner to the power turbine (PT) containment   
  ring and, for certain PT containment rings, adding scallops · Pratt & Whitney Canada PT6A-11, PT6A-110, PT6A-112 and 18 more. Effective Aug 5, 2014
- [AD 2002-23-13](https://openairdocs.org/ad/2002-23-13): Turbine Exhaust Ducts · Pratt & Whitney Canada PT6A-11, PT6A-110, PT6A-112 and 20 more. Effective Dec 31, 2002
- [AD 97-04-12](https://openairdocs.org/ad/97-04-12): Compressor Bleed-off Valve · Pratt & Whitney Canada PT6A-11, PT6A-110, PT6A-112 and 52 more. Effective Mar 14, 1997
- [AD 92-15-11](https://openairdocs.org/ad/92-15-11): Compressor Delivery Air Line (P3) Filter Assembly · Pratt & Whitney Canada PT6A-20, PT6A-20A, PT6A-21 and 7 more. Effective Aug 17, 1992
- [AD 80-08-12](https://openairdocs.org/ad/80-08-12): Fuel Pump Drive Coupling Splines · Pratt & Whitney Canada PT6A-11, PT6A-112, PT6A-135 and 24 more. Effective Apr 18, 1980

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

- [AD 2006-23-02](https://openairdocs.org/ad/2006-23-02) (historical): Flight controls for improper assembly or damage · Raytheon B200, B200C, B300 and 2 more. Effective Dec 13, 2006
- [AD 98-15-13](https://openairdocs.org/ad/98-15-13) (historical): Fuel Hose · Raytheon 100 Model or Series (all), 200 Model or Series (all), 200C and 32 more. Effective Aug 28, 1998
- [AD 92-07-05](https://openairdocs.org/ad/92-07-05) (historical): Rudder Trim Tab · Raytheon 100 Model or Series (all), 65-90, 65-A90 and 16 more. Effective Apr 30, 1992
- [AD 87-22-01 R1](https://openairdocs.org/ad/87-22-01-R1) (historical): Nose Landing Gear Fork · Raytheon 100 Model or Series (all), 1900, 1900C and 50 more. Effective Sep 30, 1989

## Information bulletins (advisory) (4 in force)

- [SAIB CE-10-34R2](https://openairdocs.org/saib/CE-10-34R2): Alternative Methods of Compliance (AMOC) to Airworthiness Directive (AD) 89-25-10 and 89-25-08. Issued Aug 30, 2013
- [SAIB CE-12-36](https://openairdocs.org/saib/CE-12-36): Flight Controls: Aileron. Issued Jun 19, 2012
- [SAIB CE-11-04](https://openairdocs.org/saib/CE-11-04): Wings  Wing Spar. Issued Dec 2, 2010
- [SAIB NE-12-04](https://openairdocs.org/saib/NE-12-04): Turbine/ Turboprop Engine: Reduction Gearbox. Issued Nov 1, 2011
- [SAIB CE-10-34R1](https://openairdocs.org/saib/CE-10-34R1) (historical): Alternative Methods of Compliance (AMOC) to Airworthiness Directive (AD) 89-25-10 and 89-25-08. Issued Aug 20, 2013
- [SAIB CE-10-34](https://openairdocs.org/saib/CE-10-34) (historical): Alternative Methods of Compliance (AMOC) to Airworthiness Directive (AD) 89-25-10 and AD 89-25-08. Issued May 18, 2010

## NTSB investigations

None matched to N135AA.

## FAA accident and incident reports (1)

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [Incident 20250620009749I](https://openairdocs.org/incident/20250620009749I), Jun 20, 2025: Beech C90A (N135AA), Lexington, KY, No damage. Repositioning flight operated under part 91 prior to 135 flight. During takeoff from Blue Grass Airport (klex), the pilot, reported that upon retracting the…

## Reports on N135AA not matched to an aircraft (2)

They name N135AA, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft.

- [Incident 19970616028619I](https://openairdocs.org/incident/19970616028619I), Jun 16, 1997: Doug DC1010 (N135AA), San Juan, Puerto Rico. Narrative: on June 16, 1997, about 1108 eastern daylight time, a Mcdonnell Douglas DC10-10, N135AA, registered to American airlines inc., operating as a 14 CFR…
- [Incident 19840427022259I](https://openairdocs.org/incident/19840427022259I), Apr 27, 1984: Doug DC1030 (N135AA), Memphis, TN. No. 3 engine flamed out at cruise altitude. Found a fuel line on the fuel control was cracked.

## Service difficulty reports (1)

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 2025F00184](https://openairdocs.org/sdr/2025F00184), Aug 15, 2025: SWITCH. STUCK. DURING TAKEOFF FROM BLUE GRASS AIRPORT (KLEX), THE PILOT REPORTED THAT UPON RETRACTING THE LANDING GEAR, THE LANDING GEAR LEVER RED UNSAFE LIGHT ILLUMINATED, AC

## Service difficulty reports on N135AA not matched to an aircraft (33)

They name N135AA, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft.

- [SDR HALA0100277](https://openairdocs.org/sdr/HALA0100277), Nov 26, 2001: STRUCTURE. CORRODED. HNL - EXFOLIATION CORROSION FUSELAGE STATION 1079 LONGERON 46L. REMOVED FASTENERS, CUT OUT DAMAGE. EDDY CURRENT FOUND NO CRACKS. REPAIRED PER DC-10 SRM 53-20-00
- [SDR HALA0100204](https://openairdocs.org/sdr/HALA0100204), Aug 8, 2001: MEC. FAILED. FLT 938 - INBOUND TO ANC, HAD NR 2 ENGINE QUIT AT 15,000 FT, ATTEMPTED RESTART, NO SUCCESS. DECLARED EMERGENCY. REMOVED AND REPLACED MEC AND FUEL PUMP. TRIM RUN
- [SDR HALA0000397](https://openairdocs.org/sdr/HALA0000397), Nov 15, 2000: BRAKE ASSY. DRAGGING. SEA - FLT 22 - ON TAXI IN NOTICED DRAGGING BRAKES, BRAKE FIRE RIGHT SIDE. REPLACED NR 3, 4, 7 AND 8 MAIN BRAKES AND TIRE AND WHEEL ASSEMBLYS. INSPECTED MAIN LAN
- [SDR HALA0000293](https://openairdocs.org/sdr/HALA0000293), Sep 17, 2000: HOUSING. CRACKED. HNL - FLT 25 - ON TOUCHDOWN, FLAIR CAUTION LIGHT APPEARED AND LOSS OF HYD FLUID BECAME EVIDENT. BOTH PUMP PRESS LOW LIGHTS ILLUMINATED. NR 3 HYD PRESS OBSERVED 
- [SDR HALA0000270](https://openairdocs.org/sdr/HALA0000270), Aug 22, 2000: TIRE. FAILED. HNL - FLT 10 - FOUND RECAP CAME OFF NR 3 TIRE, DENTS IN PANEL ABOVE TIRE, HOLE IN BOTTOM OF RIGHT WING. REMOVED AND REPLACED NR 3 MAIN TIRE. REPAIRED HOLE IN WI
- [SDR AALA2000441](https://openairdocs.org/sdr/AALA2000441), Mar 8, 2000: SKIN. CORRODED. TUL - FOUND UPPER WING SKIN CORRODED FORWARD INBOARD CORNER OF ISLAND. REMOVED CORROSION REF SRM 51-21-01. INSTALLED REPAIR ON INBOARD FORWARD CORNER OF PANEL P
- [SDR AALA2000385](https://openairdocs.org/sdr/AALA2000385), Feb 28, 2000: SKIN. CORRODED. TUL - BULDGE IN SKIN AT STATION 969, STRINGER 44 LEFT. CUT OUT CORROSION AND REPAIRED WITH FLUSH SKIN DOUBLER PER SRM 53-20-00-0 VOL 1. (M)
- [SDR AALA2000358](https://openairdocs.org/sdr/AALA2000358), Feb 24, 2000: STRUCTURE. CORRODED. TUL - FOUND CORROSION AROUND AIR BRAKE HOLE AREA FROM FS 1661-1668 IN THE LEFT INBOARD ROLLER TRAY. INSTALLED DOUBLER PER SRM 53-00-01, VOL 1. (M)
- [SDR AALA2000359](https://openairdocs.org/sdr/AALA2000359), Feb 24, 2000: ROLLER. CORRODED. TUL - LEFT INBOARD ROLLER TRAY IS CORRODED IN AREA OF AIR BRAKE HOLE AT APPROX STATION 1637. REPAIRED AREA IAW SRM 53-00-01 VOL 1. REPAIR MATERIAL .090 2024-T6.
- [SDR AALA2000369](https://openairdocs.org/sdr/AALA2000369), Feb 22, 2000: FLOORBEAM. CRACKED. TUL - FOUND FLOORBEAM CRACKED ALONG UPPER EDGE BELOW AND INBOARD OF ROLLER TRAY. REMOVED THE CRACKED WEB SECTION 2.25 INCH BY 8 INCH LONG IN FLOORBEAM AND MANUF
- [SDR AALA2000366](https://openairdocs.org/sdr/AALA2000366), Feb 18, 2000: ANGLE. CORRODED. TUL - FOUND LEFT Z ANGLE RAIL IS CORRODED FROM STATION 1670-1701. CUT OUT SECTION OF Z ANGLE FROM 1670-1701 AND SPLICED IN NEW SECTION PER SRM 53-70-00. (M)
- [SDR AALA2000365](https://openairdocs.org/sdr/AALA2000365), Feb 18, 2000: STRINGER. CORRODED. TUL - FOUND STRINGER 43 LEFT CORRODED FROM FS 869 TO FS 879. INSTALLED STRINGER REPAIR PER SRM 53-10-00. (M)
- [SDR AALA2000364](https://openairdocs.org/sdr/AALA2000364), Feb 18, 2000: SKIN. DAMAGED. TUL - REPAIR DOUBLER BULGED AND RIVET HEAD POPPED OFF AT STRINGER 44L, FS 879. INSTALLED REPAIR PER SRM 53-20-00, FIG 6. (M)
- [SDR AALA2000332](https://openairdocs.org/sdr/AALA2000332), Feb 17, 2000: FLOORBEAM. BENT. TUL - FOUND BOTTOM LIP OF FLOORBEAM IS BENT AT STATION 899 AND STATION 92R. REMOVED BENT PORTION OF LIP AND INSTALLED DOUBLER PER SRM 53-00-01. (M)
- [SDR AALA2000436](https://openairdocs.org/sdr/AALA2000436), Feb 8, 2000: SKIN. CORRODED. TUL - FOUND FORWARD CX DOOR LOWER SILL, CORROSION ON LOWER SURFACE OF RAIL (BEAM) AND SKIN. REPLACED WITH NEW SECTION OF FABRICATED RAIL PER ESO NR 28-531000-47
- [SDR AALA980220](https://openairdocs.org/sdr/AALA980220), Jan 27, 1998: SOCKET. BROKEN. SFO - DURING OVERNIGHT MAINTENANCE, FOUND EMERGENCY EXIT LIGHT AT PASSENGER SEAT 23H INOPERATIVE. REPLACED BROKEN EMERGENCY EXIT LIGHT CONTACT SOCKET AT PASSENG
- [SDR AALA972136](https://openairdocs.org/sdr/AALA972136), Nov 26, 1997: SKIN. CORRODED. TULE - FOUND CORRODED SKIN AT BS 1099-1119. REPLACED SKIN FROM STATION 1087 TO 1127 LONGERON 41R TO 48R AND INSTALLED INTERNAL AND EXTERNAL DOUBLERS PER SRM 53-
- [SDR AALA972138](https://openairdocs.org/sdr/AALA972138), Nov 6, 1997: INTERCOSTAL. CORRODED. TUL - FOUND CORROSION ON TOP SURFACE OF INTERCOSTAL AT SPLICE. MANUFACTURED NEW SECTION OF INTERCOSTAL AND INSTALLED PER SRM 51-10-00-1. (M)
- [SDR AALA972137](https://openairdocs.org/sdr/AALA972137), Nov 6, 1997: TRACK. CORRODED. TUL - FOUND CORROSION AT LEFT INBOARD ROLLER TRACK STATION 869 STRINGER 48L. FABRICATED NEW SECTION OF TRACK AND INSTALLED PER SRM 51-10-00-1. (M)
- [SDR AALA972123](https://openairdocs.org/sdr/AALA972123), Nov 5, 1997: TRAY. CORRODED. TUL - FOUND CORROSION IN TRAY BEYOND LIMITS. REMOVED AND REPLACED TRAY PER AARD 51-10-00. (M)
- [SDR AALA972118](https://openairdocs.org/sdr/AALA972118), Nov 4, 1997: SPLICE. CORRODED. TUL - DURING C-CHECK, FOUND CORROSION ON NR 52 LONGERON SPLICE BETWEEN STATION 879 AND 899 IN FORWARD CARGO COMPARTMENT. REMOVED AND REPLACED LONGERON SPLICE AN
- [SDR AALA972094](https://openairdocs.org/sdr/AALA972094), Nov 3, 1997: STRINGER. CORRODED. TUL - FOUND STRINGER CORROSION BEYOND LIMITS. REMOVED REPLACED STR AT STATION LOCATION ESO 7349 10-30-97. (M)
- [SDR AALA972092](https://openairdocs.org/sdr/AALA972092), Nov 3, 1997: FRAME. CORRODED. TUL - FOUND CORROSION ON BELLFRAME LONGERON 50L - 50R. REPLACED BELLFRAME PER AARP 51-01-00-05. (M)
- [SDR AALAS972085](https://openairdocs.org/sdr/AALAS972085), Oct 31, 1997: TRAY. CORRODED. TUL - FOUND CORROSION CENTER ROLLER TRAY STA 1561-1681. INSTALLED NEW ROLLER TRAY PER SRM 51-01-00-05. (M)
- [SDR AALA972083](https://openairdocs.org/sdr/AALA972083), Oct 31, 1997: ANGLE. CORRODED. TUL - RIGHT 2 ANGLE CORROSION FROM STATION 1521 TO STATION 1701. INSTALLED NEW 2 ANGLE FROM STATION 1521 TO STATION 1701 SRM 53-70-00. (M)
- [SDR AALA972077](https://openairdocs.org/sdr/AALA972077), Oct 31, 1997: SHEAR TIE. CORRODED. TUL - SHEAR TEE CORRODED AND STATION 1741, BETWEEN 48L AND 47L STRINGER. REMOVED CORROSION IAW 51-21-01 VOL 11. INSTALLED NEW SHEAR TIE PER 51-01-00-05 ALSO ALO
- [SDR AALA972079](https://openairdocs.org/sdr/AALA972079), Oct 30, 1997: TRAY. CORRODED. TUL - CORROSION SIDE RAIL TO FRAME OUTBOARD OF ROLLER TRAY SURFACE. REMOVED CORROSION AND OR CUTOUT CORROSION. INSTALLED NEW SECTION OF SIDERAIL PER SRM 51-01-0
- [SDR AALA972066](https://openairdocs.org/sdr/AALA972066), Oct 29, 1997: STRINGER. CORRODED. TUL - FOUND CORROSION IN STRINGER NR 52. INSTALLED NEW REPAIR STRAP PER ESO 7349 DATE 10-28-97. (M)
- [SDR AALA972063](https://openairdocs.org/sdr/AALA972063), Oct 29, 1997: DOUBLER. CORRODED. TUL - FOUND CORROSION ON BELLY BEACON DOUBLER. INSTALLED NEW DOUBLERS PER 51-01-00-05. (M)
- [SDR AALA972062](https://openairdocs.org/sdr/AALA972062), Oct 29, 1997: SUPPORT. CORRODED. TUL - CORROSION ON TOP OF FLOORBOARD SUPPORT AFT CARGO COMPARTMENT. INSTALLED NEW FLOORBOARD SUPPORT PER SRM 51-21-01. (M)
- [SDR AALA972005](https://openairdocs.org/sdr/AALA972005), Oct 21, 1997: TRAY. CORRODED. TUL - FOUND CORROSION ON NR 1 ROLLER TRAY CENTER CARGO COMPARTMENT. REPLACED ROLLER TRAY PER SRM 51-21-21. (M)
- [SDR AALA951907](https://openairdocs.org/sdr/AALA951907), Nov 8, 1995: EEL CONNECTOR. LOOSE. SFO - DURING OVERNIGHT CHECK, EMERGENCY FLOOR LIGHT AT 1L DOOR FOUND INOPERATIVE. RESECURED LOOSE EMERGENCY FLOOR LIGHT CONNECTOR AT 1L DOOR. SYSTEM GROUND CHEC
- [SDR AALA950064](https://openairdocs.org/sdr/AALA950064), Jan 15, 1995: EEL. MALFUNCTIONED. SFO - FLT 177 - DURING DESCENT, EMERGENCY FLOOR LIGHTS THROUGHOUT CABIN ILLUMINATED AND EXTINGUISHED PRIOR TO LANDING. ACFT LANDED SFO WITHOUT INCIDENT. ACCOMPL

## STCs that may be installed (OpenAirDocs) (278, 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 (Beech C90A)

- [STC SA02054SE](https://openairdocs.org/stc/SA02054SE): Installation of winglets and related system changes. 3S Certification, LLC
- [STC SA02571SE](https://openairdocs.org/stc/SA02571SE): Installation of Garmin G500/G600 TXi Integrated Avionics System (Primary Flight Display, Multi-Function Display, and Engine Indicating System Display). Garmin International Inc
- [STC SA01800SE](https://openairdocs.org/stc/SA01800SE): Fabrication and installation of new or replacement of existing instrument panel lights dimmer control. TCW Technologies, LLC
- [STC SA01861SE](https://openairdocs.org/stc/SA01861SE): Fabrication and installation of Landing Light Controller. TCW Technologies, LLC
- [STC SA01844WI](https://openairdocs.org/stc/SA01844WI): Installation of Garmin GFC 600 Automatic Flight Control System. Garmin International Inc
- [STC SA02279AT](https://openairdocs.org/stc/SA02279AT): Installation of a Boom Beam bulb, starter, and ballast. Whelen Aerospace Technologies
- [STC SA04837NY](https://openairdocs.org/stc/SA04837NY): Installation of AeroLED's Holdings, LLC., position lights, navigation lights, strobe lights and beacon lights. AeroLED's Holdings, LLC
- [STC SA02019SE-D](https://openairdocs.org/stc/SA02019SE-D): Installation of Garmin Model GTN 625/635/650; 725/750 Navigation System. Garmin International Inc
- [STC SA02133SE](https://openairdocs.org/stc/SA02133SE): Installation of a Luma Technologies LT-4500 Series Integrated Light\Emitting Diode (LED) Display Panel and LT-3500 LED light modules. Luma Technologies LLC
- [STC SA12345IB](https://openairdocs.org/stc/SA12345IB): Replacement of the Halon Type 1211 portable fire extinguisher with the Halotron BrX portable fire extinguisher. Cessna Duesseldorf Citation Service Center GmbH
- [STC SA02511SE](https://openairdocs.org/stc/SA02511SE): Installation of replacement fuel quantity indicator sending unit(s). CiES Inc
- [STC SA03930NY](https://openairdocs.org/stc/SA03930NY): Installation of King Air Belly Payload Mount. Icarus Aero Inc
- [STC SA02017WI](https://openairdocs.org/stc/SA02017WI): The Installation of the Parker-Meggitt iPRESS™ System. 3S Certification LLC
- [STC SA01638WI](https://openairdocs.org/stc/SA01638WI): Part Fabrication and Installation of Arm Ledge System and Table Assembly for aircraft cabin interior. Aviation Fabricators Inc
- [STC SA11158SC](https://openairdocs.org/stc/SA11158SC): Demonstration of aircraft tolerance to potential electromagnetic interference from certain Transmitting Potable Electronic Devices (T-PEDS). Liberty Partners Inc
- [STC SA10800SC](https://openairdocs.org/stc/SA10800SC): Installation of a 3-tube Rockwell Collins IDS-3000 Electronic Flight Instrument System with File Server Unit (FSU). BHE & Associates LTD
- [STC SA11300DS](https://openairdocs.org/stc/SA11300DS): Upgrade previously installed Collins Aerospace Radar Altimeter. BHE & Associates Ltd
- [STC SA10370SC](https://openairdocs.org/stc/SA10370SC): Installation of exhaust gas extractors on Pratt & Whitney Canada PT6A-21, -28, -29, -34, -34B, -135, or -135A turboprop engines. Metrea Special Aerospace ISR Inc
- [STC SA02738CH](https://openairdocs.org/stc/SA02738CH): Installation of L-3 Communications Avionics Systems. Acron Aviation Inc
- [STC SA04046CH PAGE 1](https://openairdocs.org/stc/SA04046CH%20PAGE%201): Installation of L-3 GENESIS (TM) Electronic Standby Instrument System (ESI-500/MAG-500). Acron Aviation Inc
- [STC SA378CH](https://openairdocs.org/stc/SA378CH): Installation of TCAS I. Acron Aviation Inc
- [STC SA9210SC-D](https://openairdocs.org/stc/SA9210SC-D): Installation of the L-3 Communications Avionics Systems Infrared Imaging System (IRIS). Acron Aviation Inc
- [STC SA09887AC](https://openairdocs.org/stc/SA09887AC): Installation of an Avionica MK-III mini Quick Access Recorder (QAR) and optional 4G or LTE Avionica Cellular Module (avCM. Aircraft Systems and Manufacturing Inc
- [STC SA02386AK](https://openairdocs.org/stc/SA02386AK): Replacement of existing landing and/or taxi light reflector and bulbs with Light Emitting Diode (LED) lighting systems. AeroLED's Holding LLC
- [STC SA04051CH](https://openairdocs.org/stc/SA04051CH): Certification of Automatic Dependent Surveillance - Broadcast (ADS-B) Out System with Rockwell Collins TDR-94/-94D Transponders. CMD Flight Solutions LLC
- [STC SA02658SE](https://openairdocs.org/stc/SA02658SE): Installation of Garmin GI 275 Multi-Function Display System. Garmin International Inc
- [STC SA01456WI-D](https://openairdocs.org/stc/SA01456WI-D): Installation of the Garmin G1000 Integrated Avionics System and GFC 700 Automatic Flight Control System. Garmin International Inc
- [STC SA02532AT](https://openairdocs.org/stc/SA02532AT): Installation of subject Michelin tires on appropriate aircraft. For Michelin 5, 6, 8, and 10-inch rim diameter tires on General Aviation Aircraft. Michelin North America Inc
- [STC SA01454CH](https://openairdocs.org/stc/SA01454CH): Installation of Butterfield Industries Oil Residue Collection System, kit Part Number BI 8030-1. Raisbeck Engineering Inc
- [STC SA02620SE](https://openairdocs.org/stc/SA02620SE): Installation of Butterfield Industries Air/Oil Separator System, kit Part Number BI 8055-1. Raisbeck Engineering Inc
- [STC SA2623NM](https://openairdocs.org/stc/SA2623NM): Installation of fully enclosed main landing gear door system and associated actuation mechanism. Raisbeck Engineering Inc
- [STC SA2939NM](https://openairdocs.org/stc/SA2939NM): Installation of nacelle overwing storage lockers and lower flap fairing. Raisbeck Engineering Inc
- [STC SA3593NM](https://openairdocs.org/stc/SA3593NM): Installation of Raisbeck/Hartzell Quiet Turbofan Propellers or Swept Turbofan Propellers, and optional Increased Gross Weight. Raisbeck Engineering Inc
- [STC SA3683NM](https://openairdocs.org/stc/SA3683NM): Installation of exhaust stack fairings. Raisbeck Engineering Inc
- [STC SA4010NM](https://openairdocs.org/stc/SA4010NM): Installation of lower aft fuselage strakes. Raisbeck Engineering Inc
- [STC SA02010WI](https://openairdocs.org/stc/SA02010WI): Installation of the Mid-Continent Instruments & Avionics MD23 FLEX Custom Function Display (CFD). Mid-Continent Instruments and Avionics
- [STC SA00076IB](https://openairdocs.org/stc/SA00076IB): Installation of Photo luminescent Safety Systems. STG AEROSPACE GERMANY GmbH
- [STC SA00741WI](https://openairdocs.org/stc/SA00741WI): Installation of the Concorde RG-380E/K series VRSLA batteries in airplanes listed on the attached FAA approved Model List (AML). Aero-Mach Wilco LLC
- [STC SA1077GL](https://openairdocs.org/stc/SA1077GL): Replace existing nose wheel with Cleveland nose wheel P/N 40-204. KAMAN Corporation Aircraft Wheel and Brake LLC
- [STC SA619GL](https://openairdocs.org/stc/SA619GL): Installation of Parker Hannifin Main Wheel and Brake Kit Part Numbers 199-90. Kaman Corporation Aircraft Wheel and Brake LLC
- [STC SA00415WI](https://openairdocs.org/stc/SA00415WI): Installation of a baggage door. Avcon Industries Inc
- [STC SA02203AK](https://openairdocs.org/stc/SA02203AK): Installation of FlightLogic Synthetic Vision Electronic Flight Information System (EFIS-SV). Genesys Aerosystems Inc
- [STC SA02254AK](https://openairdocs.org/stc/SA02254AK): Installation of "Single Screen", "2 or 3 Screen", "Dual Screen", or "4 or 6 screen". Genesys Aerosystems Inc
- [STC SA02444AK](https://openairdocs.org/stc/SA02444AK): Approval of the L-3 Communications NGT 9000/9000R ADS-B system installed. ADS-B Technologies LLC
- [STC SA09856AC](https://openairdocs.org/stc/SA09856AC): Installation of BendixKing Aerowave 100 In-flight Data Link System for non-essential, non-required aircraft Cabin Systems & Equipments. Honeywell International Inc (Bendix King)
- [STC SA11174SC PAGE 1](https://openairdocs.org/stc/SA11174SC%20PAGE%201): Installation of BendixKing by Honeywell KSN 770 and KSN 765 WAAS LPV approach capable nav/comm systems. Honeywell International Inc (Bendix King)
- [STC SA02265SE](https://openairdocs.org/stc/SA02265SE): Installation of a camera housing. Airborne Sensor LLC
- [STC SA02430SE](https://openairdocs.org/stc/SA02430SE): Fabrication and installation of a camera housing. Airborne Sensor LLC
- [STC ST01930LA](https://openairdocs.org/stc/ST01930LA): Installation of Sandel Avionics SN4500 Electronic Horizontal Situation Indicator (EHSI). Sandel Avionics LLC
- [STC SA04634NY](https://openairdocs.org/stc/SA04634NY): Modification of the Brake Master Cylinder. Marsh Brothers Aviation Inc

All 278: https://openairdocs.org/aircraft/N135AA/stcs.md

## Related

- Other Beech C90A aircraft: https://openairdocs.org/model/beech-c90a/aircraft.md
- The Pratt & Whitney Canada PT6A-21 engine: https://openairdocs.org/engine/pratt-whitney-canada-pt6a-21.md

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