# Service difficulty reports: N986Z, cancelled Dec 16, 2005 A list on [N986Z, cancelled Dec 16, 2005](https://openairdocs.org/deregistered/N986Z-2005-12-16.md). Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. Newest first. - [SDR ZW0A0105102](https://openairdocs.org/sdr/ZW0A0105102.md): Hydraulic Line · leaking · Jul 16, 2001 · N986Z · Doug DC931 · Hydraulic System, Main > AFTER GEAR EXTENSION HYDRAULIC QUANTITY INDICATED ZERO. AT THE GATE INDICATED 4 QUARTS. FOUND FAILED FLARE ON THE HYD LINE AT THE LT MLG BUNGEE. REFLARED THE LINE. CHECK-C 11-13-00 STL. - [SDR TWAA0103705](https://openairdocs.org/sdr/TWAA0103705.md): Longeron · cracked · Feb 24, 2001 · N986Z · Doug DC931 · Fuselage Main, Longeron/Stringer > THE BOTTOM AFT SIDE OF LONGERON 17L WAS CRACKED.125 INCH AT STA 965 AND FOUND EXISTING REPAIR HAD HI-LOKS TOO LONG. REMOVED AND REPLACED LONGERON 17L FROM STA 965 TO 996 PER SRM 51 AND STANDARD PRACTICES FROM ORIGINAL SPLICE TO END FITTING, AND ADDED WASHER - [SDR TWAA9915601](https://openairdocs.org/sdr/TWAA9915601.md): Bulb · incorrect · Nov 16, 1999 · N986Z · Doug DC931 · Emergency Lighting > THE FIRST CLASS CABIN OVERHEAD EMERGENCY LIGHTS WERE INOPERATIVE. FOUND INCORRECT BULBS INSTALLED. REPLACED THE BULBS. CHECK-C 8-28-99 MCI. - [SDR TWAA9914403](https://openairdocs.org/sdr/TWAA9914403.md): Battery · discharged · Oct 20, 1999 · N986Z · Doug DC931 · Emergency Lighting > THE FIRST CLASS CABIN OVERHEAD EMERGENCY LIGHTS WERE WEAK. REPLACED THE BATTERIES. CHECK-C 3-3-99 MCI. - [SDR TWAA9912302](https://openairdocs.org/sdr/TWAA9912302.md): Coffee Maker · failed · Sep 9, 1999 · N986Z · Doug DC931 · Buffet/Galleys > DURING CRUISE GOT A BURNING SMELL FROM NUMBER 2 COFFEE MAKER. REPLACED COFFEE MAKER. CC 3-3-99 MCI. - [SDR TWAA9909906](https://openairdocs.org/sdr/TWAA9909906.md): Frame · cracked · Jul 12, 1999 · N986Z · Doug DC931 · Fuselage Main, Frame > DURING OP 16 MAINT CHECK, FOUND CENTER FRAME (9911505-7) CRACKED APPROXIMATELY.75 INCH LONG IN RADIUS ON OTBD END, STA 83.5, X=10 ON LT SIDE. INSTALLED NEW FRAME PER SPM 6-70-01. - [SDR TWAA9909905](https://openairdocs.org/sdr/TWAA9909905.md): Frame · cracked · Jul 12, 1999 · N986Z · Doug DC931 · Fuselage Main, Frame > DURING OP 16 MAINT CHECK, FOUND CENTER FRAME (9911505-7) CRACKED.75 INCH LONG IN OTBD END STA 83.5, X=-10 ON RT SIDE. REF SRM 53-03, PAGE 143 IN RADIUS. INSTALLED NEW FRAME PER SPM 6-70-01. - [SDR TWAA9909904](https://openairdocs.org/sdr/TWAA9909904.md): Frame · cracked · Jul 12, 1999 · N986Z · Doug DC931 · Fuselage Main, Frame > DURING OP 16 MAINT CHECK, FOUND CENTER FRAME (9911505-7) CRACKED THROUGH RIVET AT OTBD END OF STA 83.5, X=-10, LT SIDE UPPER FLANGE JUST AFT OF RADIUS REF SPM 53-03 PAGE 143. INSTALLED NEW FRAME PER SPM 6-70-01. - [SDR TWAA9909903](https://openairdocs.org/sdr/TWAA9909903.md): Frame · cracked · Jul 12, 1999 · N986Z · Doug DC931 · Fuselage Main, Frame > DURING OP 16 MAINT CHECK, FOUND CENTER FRAME (9911505-7) CRACKED THROUGH RIVET HOLE AT OTBD END STA 83.5, X=10, LT SIDE JUST AFT OF RADIUS REF SRM 53-03 PAGE 143. INSTALLED NEW FRAME PER SPM 6-70-01. - [SDR TWAA9909902](https://openairdocs.org/sdr/TWAA9909902.md): Frame · cracked · Jul 12, 1999 · N986Z · Doug DC931 · Fuselage Main, Frame > DURING OP 16 MAINT CHECK, FOUND FRAME 911505-5 CRACKED AT INBD END THROUGH RIVET HOLE, TOP LIP JUST AFT OF RADIUS STA 83.5, X=-10 ON LT SIDE. REF SRM 53-03 PAGE 143. STOP DRILLED CRACK AND REPAIRED PER ARA 13512. - [SDR TWAA9909901](https://openairdocs.org/sdr/TWAA9909901.md): Frame · cracked · Jul 12, 1999 · N986Z · Doug DC931 · Fuselage Main, Frame > DURING OP 16 MAINT CHECK, FOUND FRAME 911505-5 CRACKED APPROXIMATELY.75 INCH IN RADIUS AT INBD END, STA 83.5 X=10 LEFT SIDE. STOP DRILLED CRACK. REPAIRED PER ARA 13512. - [SDR TWAA9909710](https://openairdocs.org/sdr/TWAA9909710.md): Frame · cracked · Jul 6, 1999 · N986Z · Doug DC931 · Fuselage Main, Frame > DURING OP 16 MAINT CHECK, FOUND FRAME CRACKED APPROXIMATELY.75 INCH LONG IN I/B RADIUS AT STA 83.5 X=-10, RT STATION. REF SRM 53-03, PAGE 143. STOP DRILLED CRACK AND ACCOMPLISHED EDDY CURRENT INSPECTION PER NDT 61-00-03. INSTALLED REPAIR DOUBLER PER SRM 53- - [SDR TWAA9909709](https://openairdocs.org/sdr/TWAA9909709.md): Skin · misdrilled · Jul 6, 1999 · N986Z · Doug DC931 · Fuselage Main, Plate/Skin > DURING OP 16 MAINT CHECK, FOUND ONE HOLE DRILLED INTO LATERAL RIB, TWO INTO LONGITUDINAL RIB AT STA 83.5 X=-10. HOLES DUE TO REPAIR IN FUSELAGE SKIN. BLENDED HOLE IN LATERAL RIB AT STA 83 AND SMOOTHED. INSTALLED REPAIR DOUBLE PER SRM 53-03, FIG 34 AND ARA - [SDR TWAA9906302](https://openairdocs.org/sdr/TWAA9906302.md): Rib · cracked · Apr 28, 1999 · N986Z · Doug DC931 · Ailerons > DURING OP 16 MAINT CHECK, FOUND RT AILERON RIB WITH DENT AND.25 INCH IN LONG CRACK, APPROX 10 IN FROM OTBD END AND 5 IN FROM LE. ACCOMPLISHED HFEC TO LOCATE ENDS OF CRACK. REPAIRED PER SRM 53-01, PAGE 10 FIG 2 SHEET 4. - [SDR TWAA9906306](https://openairdocs.org/sdr/TWAA9906306.md): Intercostal · corroded · Apr 27, 1999 · N986Z · Doug DC931 · Fuselage Miscellaneous Structure > DURING OP 16 MAINT CHECK, FOUND AFT CARGO COMPT FLOOR SUPPORT INTERCOSTAL CORRODED APPROX STRINGER 27L, STA 980. REPLACED INTERCOSTAL FROM STA 980 TO 996 PER SPM 6-70-01. - [SDR TWAA9906305](https://openairdocs.org/sdr/TWAA9906305.md): Membrane · cracked · Apr 27, 1999 · N986Z · Doug DC931 · Fuselage Miscellaneous Structure > DURING OP 16 MAINT CHECK, FOUND CABIN FLOOR MEMBRANE CRACKED ON BOTH SIDES OF FLOOR TRACK AT STA 200, RBL 44 IN. MEMBRANE WAS REPAIRED PER SRM 53-01, FIG 4 SHEET 3, FROM STA 200 TO 237. - [SDR TWAA9906304](https://openairdocs.org/sdr/TWAA9906304.md): Skin · damaged · Apr 26, 1999 · N986Z · Doug DC931 · Fuselage Main, Plate/Skin > DURING OP 16 MAINT CHECK, FOUND A FIELD REPAIR ON THE FUSELAGE SKIN AT FWD CARGO OPENING, FWD CORNER OF REPAIR NOT ACCEPTABLE. REMOVED OLD REPAIR AND INSTALLED RECOMMENDED REPAIR PER SRM 53-05, FIG 1 AND ARA 13508. - [SDR TWAA9906303](https://openairdocs.org/sdr/TWAA9906303.md): Skin · corroded · Apr 26, 1999 · N986Z · Doug DC931 · Fuselage Main, Plate/Skin > DURING OP 16 MAINT CHECK, FOUND CORROSION IN SKIN AT STA 965, LONGERON 22L, LOWER AFT CABIN AIR OUTFLOW VALVE NOZZLE. REMOVED OLD CORRODED PART, INSTALLED NEW INTERNAL DOUBLER. CUTOUT DAMAGED EXTERNAL SKIN AND INSTALLED FILLER AND DOUBLER PER ARA 13509 AND S - [SDR TWAA9906003](https://openairdocs.org/sdr/TWAA9906003.md): Seat Track · corroded · Apr 20, 1999 · N986Z · Doug DC931 · Fuselage, Seat/Cargo Attach Fittings > DURING OP 16 MAINT CHECK, FOUND THE CABIN FLOOR TRACK CORRODED AT STA 200, LBL 22 INCHES. REMOVED CORRODED TRACK AND REPLACED PER SPM 6-70-01, PAGE 2 ITEM 4 A AND 4B. - [SDR TWAA9905703](https://openairdocs.org/sdr/TWAA9905703.md): Bracket · corroded · Apr 15, 1999 · N986Z · Doug DC931 · Fuselage Miscellaneous Structure > DURING OP 16 MAINT CHECK, FOUND CORROSION ON FORMER AT STA 996, LOWER ATTACH BRACKET AT RBL 22 IN TO LBL 22 IN. LOWER BRACKET WAS REMOVED AND NEW ONE INSTALLED PER SRM 51-01. - [SDR TWAA9905603](https://openairdocs.org/sdr/TWAA9905603.md): Support · corroded · Apr 14, 1999 · N986Z · Doug DC931 · Fuselage Miscellaneous Structure > DURING OP 16 MAINT CHECK, FOUND FLOOR SUPPORT AT STA 590, ABOVE AND OTBD OF LONGERON 28L, WAS CORRODED THROUGH. REMOVED CORROSION BY INSTALLING NEW SUPPORT PART AND INSTALLED PER SRM 51-01, PAGE 1 ITEM C. - [SDR TWAA9905602](https://openairdocs.org/sdr/TWAA9905602.md): Splice · cracked · Apr 14, 1999 · N986Z · Doug DC931 · Fuselage Miscellaneous Structure > DURING OP 16 MAINT CHECK, FOUND CRACKED SPLICE AT STA 565, LONGERON 27L. REMOVED AND REPLACED LONGERON FITTING SPLICE PER PRINT 5910068, AND SRM FASTENER DESCRIPTION AND OPERATION. - [SDR TWAA9905601](https://openairdocs.org/sdr/TWAA9905601.md): Splice · cracked · Apr 14, 1999 · N986Z · Doug DC931 · Fuselage Miscellaneous Structure > DURING OP 16 MAINT CHECK, FOUND A CRACKED SPLICE AT STA 577, LONGERON 26L. REMOVED AND REPLACED LONGERON FITTING SPLICE PER PRINT 5910068, AND SRM FASTENER DESCRIPTION AND OPERATION. - [SDR TWAA9905102](https://openairdocs.org/sdr/TWAA9905102.md): Stringer · cracked · Apr 2, 1999 · N986Z · Doug DC931 · Fuselage Main, Longeron/Stringer > DURING OP 16 MAINT CHECK, FOUND STRINGER 4L CRACKED AT STA 160. SPLICED IN NEW STRINGER PER SRM 53-02, FIG 17 AND 18. - [SDR TWAA9904909](https://openairdocs.org/sdr/TWAA9904909.md): Support · cracked · Mar 30, 1999 · N986Z · Doug DC931 · Fuselage Miscellaneous Structure > DURING OP 16 MAINT CHECK, FOUND LT SIDE WALL SUPPORT CRACKED AT LOWER END, STA 579 AND WL 167. FABRICATED NEW ANGLE AND REINSTALLED WITH AD RIVETS, PER SRM 51-01 PAGE 1 ITEM C. - [SDR TWAA9819601](https://openairdocs.org/sdr/TWAA9819601.md): Coffeemaker · failed · Dec 11, 1998 · N986Z · Doug DC931 · Buffet/Galleys > THE LEFT FWD GALLEY COFFEEMAKER CAUSED ELECTRICAL SHOCK. CREW PULLED CIRCUIT BREAKER. MAINT REPLACED THE COFFEEMAKER. CHECK-C 9-24-98 MCI. - [SDR TWAA9815307](https://openairdocs.org/sdr/TWAA9815307.md): Spar · cracked · Sep 17, 1998 · N986Z · Doug DC931 · Wing Spar > DURING CHECK-C MAINT, FOUND LT WING AFT SPAR WITH EDDY CURRENT INDICATION OF 1.25 INCH CRACK IN AFT SPAR WEB,.75 INCH BELOW O/B LOWER BOLT HOLE FOR O/B FLAP HINGE CASTING. INSTALLED REPAIR PER ROD DRAWING 95-12-06-018, AND ARA 15388. - [SDR TWAA9815306](https://openairdocs.org/sdr/TWAA9815306.md): Skin · corroded · Sep 17, 1998 · N986Z · Doug DC931 · Vertical Stabilizer, Plate/Skin > DURING CHECK-C MAINT, FOUND ON VERT STAB LT SIDE, A GROOVE BLENDED BEYOND LIMITS PER SRM 53-01, PG 6 FIG 1, IN SKIN BELOW LT HORIZ STAB. ACCOMP EDDY CURRENT OF AREA PER 51-00-03 AND NO CRACKS FOUND. REPAIRED PER ARA 15375. - [SDR TWAA9815305](https://openairdocs.org/sdr/TWAA9815305.md): Angle · damaged · Sep 17, 1998 · N986Z · Doug DC931 · Landing Gear Doors > DURING CHECK-C MAINT, FOUND RT MAIN LANDING GEAR I/B DOOR DAMAGE WITH CRACK IN FWD Z' ANGLE UPPER FLANGE AND THE BUMPER PUSHED IN. REPAIRED PER SRM 52-05, FIG 14 PAGE 25. ALSO REF DRAWING 5910161, HIGH FREQ EDDY CURRENT AND CRACK CONTAINED PER 51-00-03 PAGE - [SDR TWAA9815304](https://openairdocs.org/sdr/TWAA9815304.md): Former · cracked · Sep 16, 1998 · N986Z · Doug DC931 · Fuselage Main, Frame > DURING CHECK-C MAINT, IN AFT ACCY COMPT FOUND FORMER CRACKED AT ATTACH POINT TO LONGER 2L AT STA 1076. REMOVED DAMAGED SECTION AND INSTALLED DOUBLERS PER DC9 SRM 53-03, FIG 32. - [SDR TWAA9815303](https://openairdocs.org/sdr/TWAA9815303.md): Bulkhead Web · cracked · Sep 16, 1998 · N986Z · Doug DC931 · Fuselage Main, Bulkhead > DURING CHECK-C MAINT, FOUND AFT FUSELAGE STA 1121 WITH 2 INCH CRACK IN CANTED BULKHEAD WEB BELOW LOUVERS ON LT SIDE. STOP DRILLED CRACK AND INSTALLED DOUBLER PER SRM 53-01, FIG 2 PAGE 9. - [SDR TWAA9815302](https://openairdocs.org/sdr/TWAA9815302.md): Support · cracked · Sep 16, 1998 · N986Z · Doug DC931 · Fuselage Miscellaneous Structure > DURING CHECK-C MAINT, FOUND IN RT GEAR WHEEL WELL LOWER RT FWD KEEL BEAM SELF SUPPORT CRACKED 60 PERCENT THRU, HAD ONLY BEEN STOP DRILLED. CRACK LOCATED FWD OF WHEEL WELL DOOR ACTUATOR. - [SDR TWAA9802401](https://openairdocs.org/sdr/TWAA9802401.md): Batteries · discharged · Feb 15, 1998 · N986Z · Doug DC931 · Emergency Lighting > STL - DURING MAINTENANCE CHECK, FOUND EMERGENCY EXIT LIGHTS OUT AT ROW 16 RT AND LT SIDES. REPLACED BATTERIES IN POWER PACK. CHECK-C 5-9-97 STL. (X) - [SDR 96ZZZM1208](https://openairdocs.org/sdr/96ZZZM1208.md): Battery Pack · discharged · Jul 9, 1996 · N986Z · Doug DC931 · Emergency Lighting > STL - DURING LAYOVER, MAINTENANCE FOUND EMERGENCY LIGHTS INOPERATIVE. FEEDER CABLES WERE CHECKED FOR SECURITY AND BATTERY PACK, MFG P/N 5822-2, WAS CHANGED. OPERATIONAL CHECK NORMAL. (M) - [SDR 96ZZZX1205](https://openairdocs.org/sdr/96ZZZX1205.md): Longeron · cracked · Feb 11, 1996 · N986Z · Doug DC931 · Fuselage Main, Longeron/Stringer > STL - DURING OP-15, FOUND.3750 INCH CRACK ON TOP LIP OF LONGERON 7L, STA 639. REPLACED LONGERON SECTION PER SRM 53-02, PAGE 2A, FIGURE 2. AIRCRAFT TT: 54,237 HRS; 59,836 CYCLES. ## 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 = 'N986Z' AND deregistration_id = 'N986Z-2005-12-16' ORDER BY difficulty_date DESC ``` This list as a web page: https://openairdocs.org/deregistered/N986Z-2005-12-16/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.