# N312DL: 1984 Boeing 737-232, registration cancelled 2014-09-05 - Type: Cancelled registration (FAA registry, deregistered aircraft) - Cancelled: September 5, 2014 - Status when cancelled: Registration expired, pending cancellation - Airframe: [Boeing 737-232](https://openairdocs.org/model/boeing-737-232) (registry code 1384475) - Engine: [Pratt & Whitney JT8D series](https://openairdocs.org/engine/pratt-whitney-jt8d-series) (registry code 52053) - Data sheets: [TCDS A16WE](https://openairdocs.org/tcds/A16WE) (OpenAirDocs) - Serial number: 23084 - Year built: 1984 - Type of aircraft: Fixed wing multi engine - Engine type: Turbo-jet - Airworthiness: Standard, transport - Airworthiness date: February 27, 1984 - Certificate issued: December 10, 2009 - Last registry action: December 10, 2009 - Mode S code: A34E95 - Owner when cancelled: [Ascent Aviation Services Corp](https://openairdocs.org/faa-owner/ASCENT%20AVIATION%20SERVICES%20CORP) - Location: [Tucson, AZ](https://openairdocs.org/faa-place/AZ/Tucson) - Owner type: Corporation - Owner's area on the map: 32.0703° N, 110.9063° W: Placed by OpenAirDocs at the center of ZIP code 85756, within about 5 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based - The mark today: https://openairdocs.org/aircraft/N312DL - FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=312DL - Page: https://openairdocs.org/deregistered/N312DL-2014-09-05 From the FAA registry file of October 31, 2026, cancelled registrations. Owners' street addresses are left out. The Mode S code belongs to the N-number, not the airframe. ADs and bulletins for the Boeing 737-232: https://openairdocs.org/model/boeing-737-232.md ## Service difficulty reports (31) Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. - [SDR DL73S040155](https://openairdocs.org/sdr/DL73S040155), Feb 12, 2004: SKIN. CRACKED. THE FUSELAGE SKIN WAS FOUND WITH A 4 INCH TYPICAL CRACK IMMEDIATELY ABOVE STRINGER 16L. THE CRACK RAN ALONG THE EDGE OF THE BONDED INTERNAL DOUBLER AT THE STRIN - [SDR DL73S031139](https://openairdocs.org/sdr/DL73S031139), Dec 27, 2003: LINE. CHAFED. A SYSTEM HYDRAULIC FAILURE ON FINAL, PRESSURE AND QUANTITY WENT TO ZERO. FOUND NR 2 ENGINE HYDRAULIC PUMP PRESSURE LINE CHAFED THROUGH. REPLACED LINE. - [SDR DL73S031002](https://openairdocs.org/sdr/DL73S031002), Nov 8, 2003: SKIN. CRACKED. THE FUSELAGE SKIN WAS FOUND WITH A 2.5 INCH CRACK JUST BELOW STRINGER 18R AT FS 750. THE CRACK WAS REMOVED WITH A CUTOUT AND REPAIRED WITH AN EXTERNAL ALUMINUM - [SDR DL73S031001](https://openairdocs.org/sdr/DL73S031001), Nov 8, 2003: BULKHEAD. CRACKED. A SMALL CRACK WAS FOUND EMANATING FROM A FASTENER HOLE IN THE FS 1016 AFT P-DOME WEB AT BL 0, WL 244. THE CRACK EMANATED IN 2 DIRECTIONS FROM THE HOLE AND WAS T - [SDR DL73S030984](https://openairdocs.org/sdr/DL73S030984), Nov 6, 2003: PANEL. DELAMINATED. FOUND ON W-1 LETTER CHECK, VERTICAL STAB COMPOSITE T/E PANEL DELAMINATED 2 PLACES LEFT SIDE, 1 PLACE RIGHT SIDE. REPAIRED PER SRM 55-30-3 FIG 3. - [SDR DL73S030983](https://openairdocs.org/sdr/DL73S030983), Nov 6, 2003: WEDGE. DENTED. FOUND ON W-1 LETTER CK, REPAIR LIFTING NUMBER 6 L/E SLAT T/E WEDGE 6 INCHES FROM O/B EDGE. REPAIRED PER SRM 51-40-20 AND OPERATION 1000. - [SDR DL73K021351](https://openairdocs.org/sdr/DL73K021351), Nov 20, 2002: ODOR. DETECTED. BURNING SMELL FILLS AIRCRAFT WHILE GASPER FAN IS ON OR OFF. A/C FILLED WITH SMOKE AT GATE. ALL ELECTR POWER REMOVED AND SMOKE STOPPED. COCKPIT ELECTR LOAD CENTE - [SDR DL73K021337](https://openairdocs.org/sdr/DL73K021337), Nov 17, 2002: SKIN. CRACKED. FUSELAGE / SKIN / FS 727 / STRG. 19R : CRACK REPAIR THE FUSELAGE SKIN WAS FOUND WITH A 2.5" CRACK ALONG THE BONDED DOUBLER LINE AT STRINGER 19R. THE CRACK IS TY - [SDR DL73K020871](https://openairdocs.org/sdr/DL73K020871), Jul 25, 2002: HYDRAULIC LINE. BLOWN. LOSS OF A-HYD SYS WHEN LANDING GEAR HANDLE WAS LOWERED. BOTH LOW PRESS A-SYS LIGHTS ILLUM AND HYD QTY GAUGE WENT TO ZERO. LOUD BANG WAS HEARD WHEN GEAR WAS LOWE - [SDR DL73K020341](https://openairdocs.org/sdr/DL73K020341), Mar 20, 2002: GARLOCK SEAL. LEAKING. NR 2 ENGINE OIL QUANTITY INDICATOR SLOWLY DROPPED TO 0.0 OIL PSI. OIL TEMPERATURE REMAINED WITHIN THE NORMAL OPERATING LIMITS. OIL PRESSURE, LOW YELLOW ARC AND - [SDR DL73K020119](https://openairdocs.org/sdr/DL73K020119), Jan 31, 2002: SKIN. CRACKED. AN EXISTING DOUBLER REPAIR WAS FOUND FOR REPAIR OF CRACK CUTOUT BELOW THE STRINGER 19L LAP JOINT AT FS 500. THE REPAIR DOUBLER WAS REMOVED FOR INSTALLATION OF A - [SDR DL73K020045](https://openairdocs.org/sdr/DL73K020045), Jan 12, 2002: CHARGER. INOPERATIVE. EMERGENCY SEAT LIGHTS INOP AT SEAT ROWS 5 TO 9. REPLACED BATTERY CHARGER. - [SDR DL73K020006](https://openairdocs.org/sdr/DL73K020006), Jan 1, 2002: FUSE. OPEN. EMERG LIGHTS ROW 5-9 AND LT AND RT OVERWING HATCH EXIT SIGNS INOP. REPLACED 1EA FUSE IN FWD AND AFT POWER SUPPLIES. SYS OP NOW NORMAL - [SDR DL73K010133](https://openairdocs.org/sdr/DL73K010133), Jan 25, 2001: FITTING. CORRODED. CORROSION WAS FOUND ON THE VERTICAL STABILIZER ATTACHMENT LUGS AND FUSELAGE LUGS. SOME OF THE BORES WERE OVERSIZED AND SOME OF THE FACES WERE BLENDED PER ERA 39 - [SDR DL73K010132](https://openairdocs.org/sdr/DL73K010132), Jan 25, 2001: FITTING. CORRODED. THE LT AND RT HORIZONTAL STABILIZER ATTACH FITTINGS WERE FOUND CORRODED. CORROSION WAS REMOVED FROM SEVERAL BORES AND FACES. THE DAMAGE WAS REPAIRED PER ERA 396 - [SDR DL73K010087](https://openairdocs.org/sdr/DL73K010087), Jan 18, 2001: FLOORBEAM. CRACKED. CRACKS WERE FOUND IN THE WEB OF THE LONGITUDINAL FLOORBEAM BETWEEN FS 700 AND 717. THE WEB AND CHORDS WERE INSPECTED AND REPAIRED PER S/B 737-57-1210 AT HMV. - [SDR DL73K000703](https://openairdocs.org/sdr/DL73K000703), Apr 12, 2000: LIGHT. INOPERATIVE. DURING LAYOVER, FOUND L2 SLIDE LIGHT INOP. RELAMPED LIGHT, CHECKS GOOD PER MM. - [SDR DL73K000301](https://openairdocs.org/sdr/DL73K000301), Feb 13, 2000: LINE. CRACKED. ON ARRIVAL PBI B-LOW QUANTITY LIGHT ILLUMINATED WITH LOSS OF HYD FLUID. INSTALLED INTRIM LINE BETWEEN NR 1 B-PUMP AND FILTER HOUSING. REF IPC 29-14-0-5E ITEM 15 - [SDR DL73K992644](https://openairdocs.org/sdr/DL73K992644), Dec 3, 1999: PANEL. LOOSE. LOUD NOISE COMING FROM RT REAR OF AIRCRAFT, FELT VIBRATION ON PEDALS DURING CRUISE AT FL 150 AND 240. NO AIRCRAFT CONTROL PROBLEMS NOTICED. NO SIGNIFICANT PRESS - [SDR DL73K981951](https://openairdocs.org/sdr/DL73K981951), Sep 20, 1998: TEMP BULB. FAILED. SHUT DOWN NR 1 ENGINE IN FLIGHT DUE TO HIGH OIL TEMP. FOUND NR 1 ENG OIL TEMP BULB OPEN. REPLACED TEMP BULB PER M/M, OPN CKD GOOD. LK CK GOOD. RAN ENG PER PFHB. - [SDR DL73K981610](https://openairdocs.org/sdr/DL73K981610), Aug 6, 1998: POWER SUPPLY. INOPERATIVE. EMERGENCY LIGHTS FLASHING RT AISLE AND AFT BULKHEAD. REPLACED POWER SUPPLY. - [SDR DL73K980559](https://openairdocs.org/sdr/DL73K980559), Mar 11, 1998: ELT LOCATOR. DAMAGED. DURING L/O CHECK, FOUND ELT BEACON DAMAGED. REPLACED BEACON. - [SDR DL73K970391](https://openairdocs.org/sdr/DL73K970391), Mar 3, 1997: BATTERY PACK. DISCHARGED. EMERGENCY EXIT LIGHTS INOP AT ROWS 1, 2, 3. REPLACED BATTERY PACK AND POWER SUPPLY FOR CABIN LIGHTS. - [SDR DL73K970120](https://openairdocs.org/sdr/DL73K970120), Jan 18, 1997: STRINGER. CRACKED. THE LT KEEL CHORD STR 27L WAS FOUND CORRODED AND CRACKED AT STA 727A. THE DAMAGE IS SEVERE ENOUGH THAT THE CHORD WILL HAVE TO BE REPLACED. THIS WILL REQUIRE 5 F - [SDR DL73K970123](https://openairdocs.org/sdr/DL73K970123), Jan 17, 1997: FITTING. CRACKED. THE LEFT WING OUTBOARD AFT SUPPORT FITTING FOR THE MAIN LANDING GEAR BEAM WAS FOUND CRACKED. CRACKING IS TYPICAL TO THAT DESCRIBED IN BOEING SERVICE BULLETING 7 - [SDR DL73K970177](https://openairdocs.org/sdr/DL73K970177), Jan 16, 1997: SKIN. CRACKED. A CRACK WAS FOUND IN THE FUSELAGE SKIN AT THE L2 DOOR CUT-OUT IN THE UPPER AFT CORNER. THE CRACK WAS LOCATED IN THE INNER LAYER OF THE BONDED SKIN ASSEMBLY AND - [SDR DL73K970163](https://openairdocs.org/sdr/DL73K970163), Jan 16, 1997: ANGLE. CORRODED. L-1 DOORWAY FLOOR Z- ANGLE CORROSION ENTIRE LENGTH. AUTHORIZED METHOD OF REPAIR. REPAIR PER M/M 53-21-0. CORRECTION - REMOVED DRAIN FROM Z-ANGLE. BEGAN CORROSIO - [SDR DL73S961920](https://openairdocs.org/sdr/DL73S961920), Aug 7, 1996: SKIN. CRACKED. THE R-1 DOORWAY CRACKED AT THE LOWER AFT CORNER APPROX 1.4 INCH LENGTH. THE CRACK WILL BE REPAIRED PER B737-200, SRM 53-30-3 FIG 26 WITH THE EXCEPTION OF BLIND - [SDR DL73S961364](https://openairdocs.org/sdr/DL73S961364), Jun 5, 1996: ACTUATOR. FAILED. NR 4 SLAT ACTUATOR FAILED TO EXTEND ON APPROACH. REPLACED NR 4 SLAT ACTUATOR, CHECKS OK. - [SDR DL73S960254](https://openairdocs.org/sdr/DL73S960254), Jan 29, 1996: BLKHD WEB. CRACKED. REF. E.O. 03-069482-12 OPN. 445. WEB IS CRACKED AT TWO LOCATIONS JUST INBOARD AND ONE LOCATION JUST OUTBOARD OF THE VERTICAL STIFFENER AT LBL 5.7 BETWEEN WL 207 - [SDR DL73S950844](https://openairdocs.org/sdr/DL73S950844), Jan 26, 1995: FLOORBEAM. CRACKED. THE BL 0.07 FLOOR BEAM OF THE WING CENTER SECTION IS CRACKED AT STA 663, AND THE UPPER CAP OF THE BEAM IS COMPLETELY CRACKED. THE WEB AND WEB DOUBLER ARE CRACKE ## NTSB investigations (1) From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [NTSB MIA96LA019](https://openairdocs.org/ntsb/MIA96LA019), Nov 7, 1995: Boeing 737-200 (N312DL), Pensacola, FL, no damage. Probable cause: THE PASSENGER FAILURE TO FOLLOW THE INSTRUCTIONS TO BE SEATED AND UTILIZE A SEATBELT. CONTRIBUTING TO THE ACCIDENT WAS THE IN FLIGHT ENCOUNTER WITH TURBULENCE. ## FAA accident and incident reports (3) 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 19981018034249I](https://openairdocs.org/incident/19981018034249I), Oct 18, 1998: Boeing 737* (N312DL), Rochester, NY. On Sunday, October 18, 1998 at 0832 EST, a Boeing 737, N312DL, flight 2351, operated by delta airlines, departed from Rochester international airport and… - [Accident 19951107036239A](https://openairdocs.org/incident/19951107036239A), Nov 7, 1995: Boeing 737232 (N312DL), Pensacola, FL. Encountered severe turbulence on descent into pns. Seat belt sign on. Passenger standing in aisle. Leg was broken. - [Incident 19920314008349I](https://openairdocs.org/incident/19920314008349I), Mar 14, 1992: Boeing 737232 (N312DL), Dallas-Ft Worth, TX, Minor damage. APU fire warning prior to push back. Shut it down. Used fire bottle. Evacuated. No fire. APU turbine failed. --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.