# Service difficulty reports: N985Z, cancelled Oct 19, 2005 A list on [N985Z, cancelled Oct 19, 2005](https://openairdocs.org/deregistered/N985Z-2005-10-19.md). Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. Newest first. - [SDR TWAA0104104](https://openairdocs.org/sdr/TWAA0104104.md): Longeron · cracked · Mar 5, 2001 · N985Z · Doug DC931 · Fuselage Main, Longeron/Stringer > DURING CHECK-C MAINT FOUND.25 INCH CRACK AT LONGERON 5L LOWER LEFT LEG, STA 699. REPAIRED PER SRM 53-11-3. INSTALLED LAST TWO BOLTS PER SRM 51-30-1. - [SDR TWAA0009301](https://openairdocs.org/sdr/TWAA0009301.md): Afcs · malfunctioned · Jun 12, 2000 · N985Z · Doug DC931 · Auto Flight System > CREW REPORTED UNCOMMANDED PITCH CHANGES IN FLIGHT WITH AUTOPILOT NOT ENGAGED. CHECK-C 12-23-99 MCI. - [SDR TWAA0000501](https://openairdocs.org/sdr/TWAA0000501.md): Actuator · worn · Jan 9, 2000 · N985Z · Doug DC931 · Drag Control Actuator > AFTER TAKEOFF AT GEAR RETRACTION CAPTAIN NOTED SPARKS COMING FROM CENTER PEDESTAL NEAR HIS RIGHT FOOT. ALSO, NOTICED A BURNING SMELL. FLIGHT RETURNED TO ATL. FOUND THE GROUND SPOILER ACT HAD FAILED. PLACARDED THE ACT PER MEL FOR LATER REPLACEMENT. CHECK-C - [SDR TWAA9916006](https://openairdocs.org/sdr/TWAA9916006.md): Fitting · cracked · Nov 10, 1999 · N985Z · Doug DC931 · Wing, Control Surface Attach Fittings > DURING OP 16 MAINT CHECK, THE RT WING I/B FLAP HINGE CASTING AREA XRS 164, I/B LOWER HOLE IN REAR SPAR HAD 2 CRACKS APPROXIMATELY 1.25 AND.5 INCH LONG. CRACKS WERE STOP DRILLED AND NDT CHECKED FOR CRACK CONTAINMENT. DOUBLERS WERE INSTALLED PER DOUGLAS DRAWI - [SDR TWAA9916005](https://openairdocs.org/sdr/TWAA9916005.md): Fitting · cracked · Nov 10, 1999 · N985Z · Doug DC931 · Wing, Control Surface Attach Fittings > DURING OP 16 MAINT CHECK ON RT WING THE I/B FLAP HINGE CASTING AREA XRS 164 HAD LOWER O/B HOLE CRACKED AT 12 O'CLOCK POSITION. CRACK WAS STOP DRILLED AND NDT CHECKED FOR CRACK CONTAINMENT. DOUBLERS INSTALLED PER DOUGLAS DRAWING JO 60271. - [SDR TWAA9916004](https://openairdocs.org/sdr/TWAA9916004.md): Tie · corroded · Nov 5, 1999 · N985Z · Doug DC931 · Fuselage Miscellaneous Structure > DURING OP 16 MAINT CHECK, FOUND CORRODED FORMER TIE AT STA 200, FORMER TO LONGERON 18R. INSTALLED NEW FORMER TIE FITTING AT STA 200 PER SPM 6-70-01. - [SDR TWAA9916003](https://openairdocs.org/sdr/TWAA9916003.md): Angle · corroded · Nov 5, 1999 · N985Z · Doug DC931 · Fuselage Miscellaneous Structure > DURING OP 16 MAINT CHECK, THE FWD SERVICE DOOR CUSP ANGLE WAS CORRODED BETWEEN STA 190 TO 220. INSTALLED NEW SECTION OF CUSP ANGLE FROM STA 184 TO FACTORY SPLICE AT STA 228 PER SPM 6-70-01. INSTALLED SPLICE REPAIR AT STA 184 PER SRM 53-05. - [SDR TWAA9915403](https://openairdocs.org/sdr/TWAA9915403.md): Spar · cracked · Nov 1, 1999 · N985Z · Doug DC931 · Wing Spar > DURING OP 16 MAINT CHECK, FOUND RT WING REAR SPAR OTBD FLAP MOUNT HOLES AT XRS 353 HAD THE LOWER OTBD HOLE CRACKED 1.125 INCH LONG. REAR SPAR REPAIRED AT XRS 353 PER ARA 16334. - [SDR TWAA9819006](https://openairdocs.org/sdr/TWAA9819006.md): Angle · cracked · Nov 20, 1998 · N985Z · Doug DC931 · Fuselage Miscellaneous Structure > DURING CHECK-C MAINT, FOUND DORSAL FIN TO FUSELAGE ATTACH ANGLE CRACKED ON RT SIDE AT STA 1097, APPROX 1.5 INCH LONG IN RADIUS. CRACK WAS STOP DRILLED AND CRACK CONTAINMENT VERIFIED BY NDT. ANGLE WAS REPAIRED PER SRM 53-05, FIG 23. - [SDR TWAA9818701](https://openairdocs.org/sdr/TWAA9818701.md): Angle · cracked · Nov 19, 1998 · N985Z · Doug DC931 · Fuselage Miscellaneous Structure > DURING CHECK-C MAINT, FOUND TAIL TO FUSELAGE ANGLE IN DORSAL FIN CRACKED FROM SCREW HOLE TO EDGE, ON RT SIDE AT STA 1081. REMOVED CRACKED ANGLE AND REPLACED WITH NEW ANGLE (P/N SR09530162-4), PER SB 53-223 REV 2, AND ARA 15725. - [SDR TWAA9818605](https://openairdocs.org/sdr/TWAA9818605.md): Angle · cracked · Nov 16, 1998 · N985Z · Doug DC931 · Fuselage Miscellaneous Structure > DURING CHECK-C MAINT, FOUND FUESLAGE TO TAIL ATTACH ANGLE CRACKED LT SIDE AT STA 1097. ONE CRACK 2 INCHES LONG IN RADIUS AND ONE CRACK FROM SCREW HOLE TO EDGE. CRACK WAS STOP DRILLED AND CRACK CONTAINMENT VERIFIED BY NDT. ANGLE WAS REPAIRED PER SRM 53-05, F - [SDR TWAA9818604](https://openairdocs.org/sdr/TWAA9818604.md): Casting · cracked · Nov 13, 1998 · N985Z · Doug DC931 · Fuselage Miscellaneous Structure > DURING CHECK-C MAINT, FOUND FORMER TIE CASTING CRACKED AT STA 1087, BETWEEN LONGERON 1R AND 2R. DRILLED AND INSTALLED NEW CASTING USING HLT 436 TENSION HI-LOKS PER SRM 51-60-0, PAGE 10 AND 51-30-5. - [SDR TWAA9818603](https://openairdocs.org/sdr/TWAA9818603.md): Angle · cracked · Nov 13, 1998 · N985Z · Doug DC931 · Fuselage Miscellaneous Structure > DURING CHECK-C MAINT, FOUND IN AFT FUSELAGE AT STA 1087, A 1.5 INCH CRACK AND SHEARED RIVETS BETWEEN LONGERON 2R AND 3R, O/B OF BATH TUB FITTING ON TIE ANGLE. REPLACED PART PER SPECIAL PROCESSES MANUAL 6-70-01, PAGE 2 FIG A. - [SDR TWAA9818602](https://openairdocs.org/sdr/TWAA9818602.md): Former · cracked · Nov 13, 1998 · N985Z · Doug DC931 · Fuselage Main, Frame > DURING CHECK-C MAINT, FOUND FORMER FOOT CRACKED AT STA 1087, STR 3L. REMOVED CRACKED FOOT AND INSTALLED NEW ONE PER SPECIAL PROCESSES MANUAL 6-70-01, PAGE 2 ITEM 4. - [SDR TWAA9818211](https://openairdocs.org/sdr/TWAA9818211.md): Former · cracked · Nov 10, 1998 · N985Z · Doug DC931 · Fuselage Main, Frame > DURING CHECK-C MAINT, FOUND FORMER FOOT CRACKED AT STA 1087, BETWEEN STRINGER 1 AND 3R. REMOVED BROKEN FORMER FOOT AND MADE NEW ONE OUT OF 7075T6, AND INSTALLED WITH RIVETS AND PRIMED PER STANDARD PROCESES 6-70-01. - [SDR TWAA9817901](https://openairdocs.org/sdr/TWAA9817901.md): Skin · cracked · Nov 5, 1998 · N985Z · Doug DC931 · Fuselage Main, Plate/Skin > DURING CHECK-C, MAINT FOUND FUSELAGE SKIN CRACKED AT AFT HINGE CUTOUT FOR THE NOSE GEAR RT STRUT DOOR. INSTALLED DOUBLER OF 0.063 7075T6 WITH AD-5 RIVETS. AREA PRIMED AND PAINTED. - [SDR TWAA9711202](https://openairdocs.org/sdr/TWAA9711202.md): Light · inoperative · Sep 15, 1997 · N985Z · Doug DC931 · Emergency Lighting > TPA - FLT 204 - DURING ROUTINE MAINTENANCE, A PORTABLE FLASHLIGHT WOULD NOT ILLUMINATE. REMOVED AND REPLACED THE FLASHLIGHT, MFG PN 10-0119-1, MANUFACTURED BY GRIMES AEROSPACE COMPANY. OPERATIONAL CHECK NORMAL. CHECK C - 7/29/97 - STL. (X) - [SDR TWAA9614803](https://openairdocs.org/sdr/TWAA9614803.md): Retract Mech · lack of lube · Nov 29, 1996 · N985Z · Doug DC931 · Landing Gear Retraction/Extension System > JFK - FLT 214 - AFTER TAKEOFF, LANDING GEAR SELECTOR WAS CYCLED TO GET LANDING GEAR RETRACTED AND ON LANDING GEAR EXTENSION DURING APPROACH, LANDING GEAR WAS SLOW TO EXTEND AND LOCK IN DOWN POSITION. LUBRICATED ALL LANDING GEARS. LANDING GEAR OPERATION THEN - [SDR 96ZZZM1444](https://openairdocs.org/sdr/96ZZZM1444.md): Fuel Pump · failed · Oct 2, 1996 · N985Z · Doug DC931 · Engine Fuel Pump > RSW - DURING CLIMB-OUT NR 2 ENGINE, S/N 2131, SPOOLED DOWN AND AIRCRAFT RETURNED FROM FLIGHT. REMOVED AND REPLACED ENGINE DRIVEN FUEL PUMP, MFG P/N 373401-26. OPERATIONAL CHECK NORMAL. (M) - [SDR 96ZZZM1136](https://openairdocs.org/sdr/96ZZZM1136.md): Power Supply · weak · Jun 22, 1996 · N985Z · Doug DC931 · Emergency Lighting > STL - DURING CRUISE, EMERGENCY LIGHTS ILLUMINATED INTERMITTENTLY. FOUND ALL EMERGENCY LIGHT BATTERY POWER SUPPLY WEAK, MFG P/N 5822-2. REPLACED ALL BATTERY POWER SUPPLIES AND THEN EMERGENCY LIGHT SYSTEM OPERATION CHECKED NORMAL. (M) - [SDR 96ZZZM1066](https://openairdocs.org/sdr/96ZZZM1066.md): Keel Beam · cracked · Jun 4, 1996 · N985Z · Doug DC931 · Fuselage Main, Keel > STL - DURING OP-15, FOUND.5 INCH CRACK IN WHEEL WELL, AFT END OF KEEL BEAM AT GEAR DOOR PIN HINGE LOCKPLATE, RLMG. REPAIRED PER SRM 53-04, FIGURE 42, SHEET 3. - [SDR 96ZZZM1065](https://openairdocs.org/sdr/96ZZZM1065.md): Longeron · cracked · May 21, 1996 · N985Z · Doug DC931 · Fuselage Main, Longeron/Stringer > STL - DURING OP-15, FOUND A FOUR INCH CRACK IN LONGERON 30, STATION 410 TO 412. REPLACED LONGERON 30 PER SRM 53-02, FIGURE 15. (M) - [SDR 96ZZZM1070](https://openairdocs.org/sdr/96ZZZM1070.md): Longeron · cracked · May 20, 1996 · N985Z · Doug DC931 · Fuselage Main, Longeron/Stringer > STL - DURING OP-15, FOUND LONGERON 2R CRACKED, STATION 718. REPAIRED PER SRM 52-02, FIGURE 2. (M) - [SDR 95ZZZX4258](https://openairdocs.org/sdr/95ZZZX4258.md): Fuel Pump · malfunctioned · Jul 31, 1995 · N985Z · Doug DC931 · Engine Fuel Pump > STL - FLT 340 - DURING CLIMB, SHUT DOWN NR 1 ENGINE, SN 2143, DUE TO ENGINE SURGED AND THROTTLE WOULD NOT CONTROL ENGINE POWER. REPLACED ENGINE FUEL PUMP, MFG PN 378200 AND FUEL CONTROL. MFG PN 743602-4. ENGINE OPERATION CHECKED NORMAL. ENGINE TOTAL TIME - [SDR 95ZZZX3401](https://openairdocs.org/sdr/95ZZZX3401.md): Ind Wire · open · Jun 14, 1995 · N985Z · Doug DC931 · Landing Gear Position and Warning > ORF - FLT 694 - DURING APPROACH WHEN LANDING GEAR WAS EXTENDED, NOSE GEAR GREEN, DOWN, AND LOCKED LIGHT DID NOT ILLUMINATE. CYCLED LANDING GEAR. FOUND WIRE, G216B24, WITH HIGH RESISTANCE AND INTERMITTENTLY OPEN. REPLACED WIRE, G216B24, BETWEEN CONNECTOR P1- - [SDR 95ZZZX3184](https://openairdocs.org/sdr/95ZZZX3184.md): Wire · failed · Jun 14, 1995 · N985Z · Doug DC931 · Landing Gear System Wiring > ORF - FLT 694 - DURING APPROACH WHEN LANDING GEAR WAS EXTENDED, NOSE GEAR GREEN, DOWN, AND LOCKED LIGHT DID NOT ILLUMINATE. CYCLED LANDING GEAR. FOUND WIRE, C216B24, WITH HIGH RESISTANCE AND INTERMITTENTLY OPEN. REPLACED WIRE, G216B24, BETWEEN CONNECTOR P1- - [SDR 95ZZZX3180](https://openairdocs.org/sdr/95ZZZX3180.md): Relay · malfunctioned · Jun 11, 1995 · N985Z · Doug DC931 · Landing Gear Position and Warning > MCI - FLT 117 - DURING APPROACH WHEN LANDING GEAR WAS EXTENDED, NLG GREEN LIGHT DID NOT ILLUMINATE. CYCLED LANDING GEAR AND GREEN LIGHT CAME ON. REPLACED LANDING GEAR LEVER RELAY R2-28, MFG PN 9274-3643. NLG OPERATION AND INDICATION CHECKED NORMAL. CHECK C - [SDR 95ZZZX3181](https://openairdocs.org/sdr/95ZZZX3181.md): Downlock Switch · failed · Jun 10, 1995 · N985Z · Doug DC931 · Landing Gear Position and Warning > STL - FLT 631 - DURING APPROACH WHEN LANDING GEAR WAS EXTENDED, NLG GREEN LIGHT DID NOT ILLUMINATE. CYCLED LANDING GEAR AND SWAPPED LIGHT BULBS. ON SECOND APPROACH, GREEN LIGHT CAME ON. REPLACED NLG DOWNLOCK SWITCH, MFG H14-6. NLG INDICATION AND OPERATION - [SDR 95ZZZW642](https://openairdocs.org/sdr/95ZZZW642.md): Jamb · corroded · Feb 24, 1995 · N985Z · Doug DC931 · Fuselage Miscellaneous Structure > STL - DURING C-CHECK, CORROSION ON AFT CARGO BIN LOWER DOOR JAMB INNER PANEL, FROM FORWARD LOWER CORNER TO AFT SIDE. REPAIRED PER SRM 53-05, FIGURE 14. - [SDR 95ZZZW594](https://openairdocs.org/sdr/95ZZZW594.md): Jamb · corroded · Feb 24, 1995 · N985Z · Doug DC931 · Fuselage Miscellaneous Structure > STL - DURING C-CHECK, FOUND CORROSION ON AFT CARGO BIN LOWER DOOR JAMB INNER PANEL, FROM FORWARD LOWER CORNER TO AFT SIDE. REPAIRED PER SRM 53-05, FIGURE 14. ## The whole list in SQL Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS: ```sql SELECT sdr_id, difficulty_date, n_number, aircraft_make, aircraft_model, part_name, part_condition, jasc_code, discrepancy FROM 'https://openairdocs.org/data/latest/faa_service_difficulty_report.parquet' WHERE n_number = 'N985Z' AND deregistration_id = 'N985Z-2005-10-19' ORDER BY difficulty_date DESC ``` This list as a web page: https://openairdocs.org/deregistered/N985Z-2005-10-19/reports --- 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.