# Boeing 727-31C - Type: Aircraft model (FAA registry) - Registry code: 1384011 - Manufacturer (registry): BOEING - Model: 727-31C - Aircraft type: Fixed wing multi engine - Category: Airplane - Engines: 3 ยท Turbo-jet - Seats: 134 - Weight class: 20,000 lb and over - Cruise speed: 435 mph - Certification: Type certificated - Registered aircraft: 0 - Page: https://openairdocs.org/model/boeing-727-31c Model codes come from the FAA registry's reference file. ADs are matched to them by model name and maker. ## ADs that may apply (OpenAirDocs) Matched to this model by model name and maker. Each AD's applicability may narrow it by serial number, part number or equipment. None matched. ## Registered aircraft None registered with this model now. ## NTSB investigations None matched to aircraft with this model. ## 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 19910930050799I](https://openairdocs.org/incident/19910930050799I), Sep 30, 1991: Boeing 72731C (N923UP), Toluca, Mexico, Minor damage. Aircraft not aligned with center of runway. Elected to go around. Banked and wing tip hit ground. Landed safely. - [Incident 19900409012739I](https://openairdocs.org/incident/19900409012739I), Apr 9, 1990: Boeing 72731C (N926UP), Des Moines, IA, Minor damage. NR2 engine fire warning. Secured and returned. Found bleed air leak at manifold flange. Bolts not safety wired. - [Incident 19890825047699I](https://openairdocs.org/incident/19890825047699I), Aug 25, 1989: Boeing 72731C (N925UP), Fort Myers, FL. Lost system a hydraulic fluid. Emergency landing. Found flap drive leak on left inboard side. ## Service difficulty reports (885, newest 50) As reported by operators and repair stations, by the model named in the report. - [SDR UPS07249235](https://openairdocs.org/sdr/UPS07249235), Feb 21, 2007: LINE. LEAKING. INSPECTION TYPE:N/A A-SYSTEM HYDRAULIC QUANTITY LOSS DURING FINAL APPROACH. NO EMERGENCY DECLARED. MX IS I/W REPLACING A LEAKING RETURN LINE. FOUND UNION LEAKIN - [SDR UPS07249102](https://openairdocs.org/sdr/UPS07249102), Feb 1, 2007: LIGHT. INOPERATIVE. INSPECTION TYPE:N/A EMERGENCY EXIT LIGHT INOP. PERFORMED EMERGENCY LIGHT CHECK PER MM 33-50-01-5. NO DEFECT NOTED. - [SDR UPS06248770](https://openairdocs.org/sdr/UPS06248770), Dec 15, 2006: LIGHT. INOPERATIVE. EMERGENCY EXIT LIGHTS INOP. REMOVED AND REPLACED BATTERIES AND OPS CK IAW MM 33-50-01-5. - [SDR UPS06248392](https://openairdocs.org/sdr/UPS06248392), Nov 1, 2006: LIGHT. INOPERATIVE. FOUND EMERGENCY LIGHTS INOP. REMOVED AND REPLACED EMERGENCY LIGHT BATTERIES AND OPERATIONAL CHECK PER MM 33-50-01-5 CKS NORMAL. - [SDR UPS06247166](https://openairdocs.org/sdr/UPS06247166), Jun 21, 2006: BATTERY PACK. DISCHARGED. INSPECTION TYPE:N/A EMERGENCY EXIT LIGHT INOP AT CABIN DOOR. REPLACED BATTERY PACK PER MM 33-50-90-2. - [SDR UPS06247165](https://openairdocs.org/sdr/UPS06247165), Jun 21, 2006: LIGHT. INOPERATIVE. INSPECTION TYPE:N/A EMERGENCY LIGHT INOP AT COCKPIT DOOR. REMOVED AND REPLACED LIGHT ASSY, OPS CHECK NORMAL. - [SDR UPS06247167](https://openairdocs.org/sdr/UPS06247167), Jun 20, 2006: SMOKE GOGGLES. SCRATCHED. INSPECTION TYPE:N/A 2ND OBSERVER SMOKE GOGGLES BADLY SCRATCHED. REMOVED AND REPLACED 2ND OBSERVER SMOKE GOGGLES. - [SDR UPS05245892](https://openairdocs.org/sdr/UPS05245892), Dec 23, 2005: HYDRAULIC SYSTEM. LEAKING. INSPECTION TYPE:N/A ATB - HYD QTY AFTER TAKEOFF WENT TO 2.0 GALS AFTER FLAP RETRACTION QTY HELD STEADY AT 2.3 GALS. FOUND ASYS QTY LOW, SERVICED TO PROPER LEVEL - [SDR UPS05245846](https://openairdocs.org/sdr/UPS05245846), Nov 26, 2005: LIGHT. INOPERATIVE. ONE LAMP INOP IN EMERGENCY EXIT LIGHT AT L1 DOOR. RELAMPED OK FOR SERVICE. - [SDR UPS05245464](https://openairdocs.org/sdr/UPS05245464), Sep 18, 2005: SLIDE. INOPERATIVE. INSPECTION TYPE:N/A L-1 DOOR SLIDE INOP. REMOVED AND REPLACED SLIDE ASSY PER 25-60-14, THIS CLEARS M310071. - [SDR UPS05245518](https://openairdocs.org/sdr/UPS05245518), Sep 13, 2005: SLAT TRACK. CORRODED. ON REMOVAL OF NR 6 SLAT I/B TRACK SKIN SUPPORT BRACKET, CORROSION ON TEE TRACK FOUND BENEATH BRACKET. NR 6 SLAT TRACK REPLACED IAW MM 27-81-11. - [SDR UPS05245433](https://openairdocs.org/sdr/UPS05245433), Sep 2, 2005: LAP JOINT. CORRODED. INSPECTION TYPE:C 2 BULGES FOUND ON LAP JOINT AT STRINGER 4R BS 1139. DAMAGED AREA CUT OUT IAW SRM 53-30-3 FIG 5 AND REPAIRED IAW SRM 53-30-3 FIG 5. - [SDR UPS05245465](https://openairdocs.org/sdr/UPS05245465), Sep 1, 2005: BUSHING. CORRODED. INSPECTION TYPE:C NR 1 ENGINE FWD ENGINE MOUNT PITTING CORROSION IN BORE OF MOUNT HOLES (TW O/B HOLES). BUSHINGS REPLACED IAW SOPM 20-50-03 AND EO B727-5440-159 - [SDR UPS05245466](https://openairdocs.org/sdr/UPS05245466), Aug 30, 2005: RIB. CRACKED. INSPECTION TYPE:C-CRACK ON NR 8 SLAT O/B RIB AT I/B TRACK ATTACHMENT AREA. SLAT STOP DRILLED IAW AAAE EO 2005-081-004 REV 1 (UPS ENG FILE NR 727- 57-20133). - [SDR UPS05245437](https://openairdocs.org/sdr/UPS05245437), Aug 28, 2005: ATTACH FITTING. CRACKED. INSPECTION TYPE: C, CRACK IN ZEE SECTION ATTACHED TO FRAME AT BS 1050 LBL 21. Z-SECTION REPAIRED IAW SRM 51-40-4 FIG 2. - [SDR UPS05245436](https://openairdocs.org/sdr/UPS05245436), Aug 28, 2005: FLOORBEAM. CORRODED. INSPECTION TYPE:C SURFACE CORRSION AT BS 1130 JOINT BETWEEN FLOORBEAM TOP AND CREASE WEB AT RBL 62. REPAIR PARTS FABRICATED IAW AAAE EO 2005-081-003 - UPS ENG F - [SDR UPS05245435](https://openairdocs.org/sdr/UPS05245435), Aug 28, 2005: BULKHEAD. CORRODED. INSPECTION TYPE: C, CORROSION ON LT WHEEL WELL BULKHEAD AT BS 870 - FWD FACE 25 INCH FROM O/B EDGE AND 20 INCH FROM BOTTOM EDGE. REPAIR CARRIED OUT IAW AAAE RO - [SDR UPS05245442](https://openairdocs.org/sdr/UPS05245442), Aug 27, 2005: SHEAR TIE. CRACKED. INSPECTION TYPE:C SUSPECT CRACK IN CENTER TANK FRONT SPAR TO STIFFENER SHEAR TIE CLIP O/B AFT RADIUS LBL 25-08. SHEAR TIE CLIP REPLACED IAW 51-30-02. - [SDR UPS05245470](https://openairdocs.org/sdr/UPS05245470), Aug 26, 2005: FLAP TRACK. CORRODED. INSPECTION TYPE:C-CORROSION ON NR 4 FLAP TRACK AFT MOUNT PAD CORROSION REMOVED IAW SOPM 20-10-01 P1 AND EO B727-5742-0651K & TEMPER ETCHED 2B (3) IAW SOPM 20-10 - [SDR UPS05245469](https://openairdocs.org/sdr/UPS05245469), Aug 26, 2005: FLAP TRACK. CORRODED. INSPECTION TYPE:C-CORROSION FOUND ON FWD MOUNTING PAD OF NR 4 FLAP TRACK. CORROSION REMOVED IAW SOPM 20-10-01 P1 AND EO B727-5742-0651K. SURFACE TEMPER ETCHED 2 - [SDR UPS05245468](https://openairdocs.org/sdr/UPS05245468), Aug 26, 2005: FLAP TRACK. CORRODED. INSPECTION TYPE:C-CORROSION ON NR 4 FLAP TRACK FWD MOUNTING UPPER AND LWR, ALSO INNER RADIUS OF HOLES. CORROSION REMOVED IAW SOPM 20-10-01 P1 AND EO B727-5742-0 - [SDR UPS05245430](https://openairdocs.org/sdr/UPS05245430), Aug 25, 2005: FITTING. CORRODED. INSPECTION TYPE:C CORROSION ON NLG TRUNNION FITTINGS LT AND RT. CORROSION REMOVED FROM LT & RT TRUNNION FITTINGS IAW SRM 53-40-01. NEW BUSHINGS FABRICATED AND I - [SDR UPS05245467](https://openairdocs.org/sdr/UPS05245467), Aug 23, 2005: STIFFENER. CRACKED. INSPECTION TYPE:C-CRACK IN VERTICAL STIFFENER LT WING FRONT SPAR AT STA 557. STIFFENER REPLACED IAW SRM 51-30-2 AND DRW NR 65-16200. - [SDR UPS05245431](https://openairdocs.org/sdr/UPS05245431), Aug 22, 2005: CHANNEL. CRACKED. INSPECTION TYPE:C SUPPORT CHANNEL CRACKED AT TOP END, JUST I/B OF RT ELEVATOR NR 1 HINGE BEAM, AFT OF ELEVATOR I/B INPUT ROD. CHANNEL FABRICATED IAW SRM 51-20-1 - [SDR UPS05245434](https://openairdocs.org/sdr/UPS05245434), Aug 19, 2005: STIFFENER. CORRODED. INSPECTION TYPE:C HORIZONTAL STIFFENER CORRODED IN CABIN AT BS 870 FWD SIDE, RBL 19. REPLACEMENT STIFFENER FABRICATE IAW SRM 51-20-10 AND DRAWING 65-23114. STIF - [SDR UPS05245526](https://openairdocs.org/sdr/UPS05245526), Aug 17, 2005: FITTING. LEAKING. INSPECTION TYPE: C+SI, FUEL LEAK FROM UNDERNEATH LT LANDING GEAR FWD TRUNNION SUPPORT SITTING SEEMS TO BE COMING FROM LWR LARGE BOLTS. LWR I/B FASTENERS (X2) RE - [SDR UPS05244731](https://openairdocs.org/sdr/UPS05244731), Jun 15, 2005: SKIN. CORRODED. C NDI HAS MATERIAL LOSS INDICATION AT S19 RT BS 441, SKIN CUT OUT AND REPAIR IN CONJUNCTION WITH NRC 792106 LAP REPAIR. - [SDR UPS05244729](https://openairdocs.org/sdr/UPS05244729), Jun 14, 2005: BUSHING. DAMAGED. ENGINE NR 3 FWD MOUNT AFT O/B HOLE REPAIR BUSHING DAMAGED. BUSHING REPLACED IAW UPS EO B727-5440-11592-A. - [SDR UPS05244728](https://openairdocs.org/sdr/UPS05244728), Jun 14, 2005: STRUCTURE. CORRODED. ENG NR 1 FWD MOUNT BOTH O/B HOLES HAVE PITTING CORROSION ON REPAIR BUSHINGS. BUSHINGS REPLACED IAW UPS EO B727-5440-11592-A. - [SDR UPS05244725](https://openairdocs.org/sdr/UPS05244725), Jun 13, 2005: SKIN. CRACKED. CRACK IN FUSELAGE SKIN BS 355 BETWEEN S26L AND 27L. REPAIR CARRIED OUT IAW SRM 53-30-3 AND 51-10-2. - [SDR UPS05244732](https://openairdocs.org/sdr/UPS05244732), Jun 12, 2005: FITTING. CRACKED. CLEAT CRACKED O/B OF S26R AT BS 600 LWR SECTION OF CLEAT ADJACENT TO S 26. REMOVED DAMAGED CLEAT IAW SRM 51-30-2. FABRICATED CLEAT IAW SRM 51-20-1. INSTALLED CL - [SDR UPS05244727](https://openairdocs.org/sdr/UPS05244727), Jun 11, 2005: SUPPORT BRACKET. CRACKED. ENG NR 3 THRUST REVERSER O/B FAIRING MID SUPPORT BRACKET CRACKED. BRACKET REPLACED IAW SRM 51-30-2. - [SDR UPS05244726](https://openairdocs.org/sdr/UPS05244726), Jun 11, 2005: SUPPORT BRACKET. CRACKED. ENG NR 1 THRUST REVERSER O/B FAIRING MID SUPPORT BRACKET CRACKED. BRACKET REPLACED IAW SRM 51-30-2. - [SDR UPS05244733](https://openairdocs.org/sdr/UPS05244733), Jun 10, 2005: SKIN. CRACKED. CRACK ON SKIN AT FWD ENTRY DOOR UPPER FWD AREA (BETWEEN S6 AND S 7L) OF CUT OUT. REPAIR CARRIED OUT IAW EO B727-5330-1460 OPTION 1. - [SDR UPS05244730](https://openairdocs.org/sdr/UPS05244730), Jun 10, 2005: SUPPORT BRACKET. CRACKED. NR 2 LE FLAP ACTUATOR O/B SUPPORT BRACKET CRACKED AT UPPER FWD CORNER. BRACKET FABRICATED AND REPLACED IAW SRM 51-20-1, 51-30-02 AND DRAWING 65 -16269. - [SDR UPS05244738](https://openairdocs.org/sdr/UPS05244738), Jun 7, 2005: HINGE. CRACKED. INSPECTION TYPE:C SUSPECT CRACK ON LEFT O/B AILERON I/B TAB HINGE ASSY LWR HALF. HFEC CARRIED OUT ON SUSPECT AREA IAW B727 NDTM 51-00-00 PT6 FIG 4, CRACK CONFIR - [SDR UPS05244737](https://openairdocs.org/sdr/UPS05244737), Jun 7, 2005: SKIN. DEBONDED. INSPECTION TYPE:C RT ELEVATOR TAB DISBONDED AT LOWER SURFACE 24 INCHES O/B OF INNER EDGE, AT LOWER SURFACE 3 INCHES FROM O/B EDGE 2 SUSPECT AREA RT UPPER OUTER - [SDR UPS05244736](https://openairdocs.org/sdr/UPS05244736), Jun 7, 2005: SKIN. CORRODED. INSPECTION TYPE:C LT ELEVATOR TAB UPPER SKIN CORRODED 5 INCHES FROM O/B END. REMOVED CORROSION IAW SRM 51-10-01, BLENDOUT FOUND TO BE OUT OF LIMITS IAW SRM 55-2 - [SDR UPS05244735](https://openairdocs.org/sdr/UPS05244735), Jun 7, 2005: LAP JOINT. CORRODED. INSPECTION TYPE:C SUSPECT CORROSION AT LAP JOINT S19R BETWEEN BS 390 AND 441 AREA BETWEEN BS 390 AND 441 PAINT STRIPPED IAW MM 51-20-01. AREA REINSPECTED, COROS - [SDR UPS04243402](https://openairdocs.org/sdr/UPS04243402), Oct 22, 2004: BULB. INOPERATIVE. INSPECTION TYPE:N/A EMERGENCY LIGHT SWITCH OFF IND BULB INOP. REMOVED AND REPLACED EMERGENCY LIGHT SWITCH OFF IND BULB IAW 33-1000. - [SDR UPS04243150](https://openairdocs.org/sdr/UPS04243150), Sep 22, 2004: ACTUATOR. BROKEN. INSPECTION TYPE:N/A ON APPROACH RIGHT MAIN UPLOCKED LIGHT GEAR DOOR LIGHT REMAINED ON. RECYCLED ONCE, LIGHTS STILL ON, MANUALLY CRANKED RIGHT GEAR DOWN. REPLACE - [SDR UPS04243022](https://openairdocs.org/sdr/UPS04243022), Aug 25, 2004: LIGHT. MALFUNCTIONED. FLT STA EMERGENCY LIGHT WAS COMING ON IN FLT IN ARM POST. REMOVED AND REPLACED EMERGENCY LIGHT ASSY IAW 33-50-00. OPS CHECK GOOD. - [SDR UPS04242900](https://openairdocs.org/sdr/UPS04242900), Aug 13, 2004: SWITCH. INOPERATIVE. EMERGENCY EXIT LIGHTS INOPERATIVE, COCKPIT DOOR. TURNED BATTERY SWITCH ON PLACED EMERGENCY LIGHT SWITCH TO ARMED, LIGHT CHECKS GOOD. - [SDR UPS04242550](https://openairdocs.org/sdr/UPS04242550), Jun 9, 2004: LIGHT. INOPERATIVE. EMERGENCY EXIT LIGHTS NOT OPERATING. RESEATED EMERGENCY LIGHT ASSY, OPS CHECK NORMAL. - [SDR UPS04242205](https://openairdocs.org/sdr/UPS04242205), Apr 7, 2004: FLAP TRACK. CRACKED. INSPECTION TYPE: C, NR 6 FLAP TRACK FAIRING I/B TRACK IS CRACKED. FAIRING TRACK REPLACED IAW SRM 51-30-02. - [SDR UPS04242181](https://openairdocs.org/sdr/UPS04242181), Apr 7, 2004: CASTING. CRACKED. INSPECTION TYPE: C, RIGHT O/B FLAP I/B FLAP TRACK FAIRING HAS CRACKED CASTING/BRACKET. CRACKED BRACKET REMOVED IAW SRM 51-30-02 & STOP DRILLED IAW SRM 51-10-1. - [SDR UPS04242260](https://openairdocs.org/sdr/UPS04242260), Apr 6, 2004: ANGLE. CORRODED. INSPECTION TYPE:C LT 950 FITTING LWR SPLICE ANGLE HAS SUSPECT CORROSION UNDER THE ANGLE. ANGLE WAS ALSO FOUND CORRODED AFTER REMOVAL. ANGLE REPLACED AND BS 950 - [SDR UPS04242241](https://openairdocs.org/sdr/UPS04242241), Apr 6, 2004: DOOR FRAME. CRACKED. INSPECTION TYPE:C LWR FWD CARGO DOOR CUTOUT FRAME, CRACK INDICATION IN AREA NR 4 FWD DOOR STOP. REPAIR CARRIED OUT IAW SMRO EO 2004-027-01 UPS ENGINEERING FILE - [SDR UPS04242206](https://openairdocs.org/sdr/UPS04242206), Apr 6, 2004: FRAME. CORRODED. INSPECTION TYPE: C, FUSELAGE FAIRING 3430 HAS EXTENSIVE CORROSION TO THE FORMED FRAME HOLDING THE ANCHOR NUTS (FWD SIDE OF FAIRING). REPAIR CARRIED OUT IAW SRM - [SDR UPS04242204](https://openairdocs.org/sdr/UPS04242204), Apr 6, 2004: BEAM. CORRODED. INSPECTION TYPE: C, RT HORIZONTAL STABILIZER UPPER TRAILING EDGE BEAM HAS CORROSION AFT OF BALANCE PANEL BAYS. BEAM REPLACED IAW SRM 51-30-2 AND DRG NR 65-22987 All 885: https://openairdocs.org/model/boeing-727-31c/reports.md --- 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.