# Service difficulty reports: N77204, cancelled Mar 17, 1999 A list on [N77204, cancelled Mar 17, 1999](https://openairdocs.org/deregistered/N77204-1999-03-17.md). Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. Newest first. - [SDR CALA9801859](https://openairdocs.org/sdr/CALA9801859.md): Actuator · inoperative · Sep 25, 1998 · N77204 · Boeing 737130 · Landing Gear Retraction/Extension System > THE GEAR HANDLE WAS PLACED IN THE OFF POSITION AFTER TAKEOFF AND THE NOSE GEAR CAME DOWN. THE GEAR HANDLE WAS PLACED UP AND THE NOSE GEAR RAISED. THE GEAR HANDLE WAS THEN PLACED TO OFF AND THE GEAR STAYED UP. THE FLIGHT WAS CONTINUED WITHOUT FURTHER PROBLEM - [SDR CALA9801589](https://openairdocs.org/sdr/CALA9801589.md): Bulb · failed · Aug 31, 1998 · N77204 · Boeing 737130 · Landing Gear Position and Warning > NO NOSE GEAR INDICATION WAS RECEIVED WHEN GEAR WAS EXTENDED ON APPROACH. A GO-AROUND WAS INITIATED AND THE NOSE GEAR LIGHTS DID NOT TEST. THE NOSE GEAR INDICATOR LIGHT BULBS WERE REPLACED AND TESTED GOOD. GOOD INDICATIONS WERE RECEIVED WITH GEAR EXTENDED AN - [SDR CALA9801498](https://openairdocs.org/sdr/CALA9801498.md): Hyd Pump · leaking · Aug 23, 1998 · N77204 · Boeing 737130 · Hydraulic Pump (Electric/Engine), Main > THE NR 2 ENGINE A-HYD PUMP LOW PRESSURE LIGHT ILLUMINATED AFTER TAKEOFF. THE NR 1 ENGINE A-HYD PUMP LOW PRESSURE LIGHT ILLUMINATED AND THE EMERGENCY CHECKLIST FOR LOSS OF HYD WAS COMPLETED. THE AIRCRAFT WAS RETURNED AND LANDED WITHOUT INCIDENT. MAINTENANCE - [SDR CALA9801052](https://openairdocs.org/sdr/CALA9801052.md): Socket · corroded · Jun 12, 1998 · N77204 · Boeing 737130 · Emergency Lighting > INSPECTION FOUND AFT EXTERIOR EXIT SLIDES INOPERATIVE BOTH SIDES. THE RIGHT EXTERIOR SLIDE LIGHT SOCKET WAS CORRODED. THE SOCKET WAS REPLACED. IN ADDITION, BATTERY PACK M572 WAS REPLACED, OPERATION OF BOTH LIGHTS CHECKED GOOD. - [SDR CALA9701234](https://openairdocs.org/sdr/CALA9701234.md): Dnlock Actuator · inoperative · Aug 23, 1997 · N77204 · Boeing 737130 · Landing Gear Retraction/Extension System > THE LANDING GEAR WAS EXTREMELY STIFF DURING RETRACTION FROM UP TO OFF WITH NO NOTICEABLE DETENT AT OFF. THE NOSE GEAR EXTENDED APPROXIMATELY 12 TO 15 SECONDS AFTER MAINS. MAINTENANCE REMOVED AND REPLACED THE NLG LOCK ACTUATOR IAW MM 32-33-21 PAGE 401. THE G - [SDR CALA9700608](https://openairdocs.org/sdr/CALA9700608.md): Line · chafed · Apr 23, 1997 · N77204 · Boeing 737130 · Hydraulic System, Main > LOST A-SYSTEM HYDRAULICS IN FLIGHT. REPLACED NUMBER 2 ENGINE HYDRAULIC SUPPLY LINE AT RIGHT WING ROOT. - [SDR CALA9700299](https://openairdocs.org/sdr/CALA9700299.md): Thermo Valve · inoperative · Mar 2, 1997 · N77204 · Boeing 737130 · Pneumatic Distribution System > THE RT PACKED TRIPPED AT 6,000 FEET LEAVING EWR AND SMOKE BEGAN TO ENTER THE CABIN. SHORTLY AFTERWARDS THE BLEED TRIPPED. THE AIRCRAFT WAS RETURNED TO EWR WHERE IT LANDED WITHOUT INCIDENT. THE 450 DEGREE THERMO VALVE WAS REMOVED AND REPLACED, AN ENGINE BLEE - [SDR CALA9700046](https://openairdocs.org/sdr/CALA9700046.md): Stiffener · cracked · Dec 31, 1996 · N77204 · Boeing 737130 · Wing Miscellaneous Structure > INSPECTION FOUND A 2 INCH CRACK IN RT WING VERTICAL STIFFENER AT STRINGER 13R. THE STIFFENER WAS REPAIRED IAW ECRA 5710-01773 AND IN REFERENCE TO BOEING DRAWING 65C34533. - [SDR CALA9700049](https://openairdocs.org/sdr/CALA9700049.md): Spar · torn · Dec 17, 1996 · N77204 · Boeing 737130 · Horizontal Stabilizer, Spar/Rib > INSPECTION FOUND A 3 BY.375 INCH TEAR IN LOWER FLANGE OF LT HORIZONTAL STABILIZER FORWARD LEADING EDGE SPAR. THE TEAR WAS LOCATED THREE FEET FROM OUTBOARD EDGE. A FILLER AND DOUBLER REPAIR WAS FABRICATED AND INSTALLED IAW SRM 55-10-5, FIGURE 1. - [SDR CALA9700047](https://openairdocs.org/sdr/CALA9700047.md): Floorbeam · corroded · Dec 17, 1996 · N77204 · Boeing 737130 · Fuselage Main, Floor Beam > INSPECTION FOUND FLOORBEAM CORRODED AT STA 328, BL 0 TO RBL 55. A FLOORBEAM WAS FABRICATED AND INSTALLED IAW SRM 51-10-3. - [SDR CALA9700050](https://openairdocs.org/sdr/CALA9700050.md): Support · corroded · Dec 10, 1996 · N77204 · Boeing 737130 · Fuselage Miscellaneous Structure > INSPECTION FOUND CENTER FLOORBEAM SUPPORT CORRODED UNDER PANEL NR 8 BETWEEN STA 312 AND 328. A NEW SUPPORT WAS FABRICATED AND INSTALLED IAW SRM 53-10-2. - [SDR CALA9700048](https://openairdocs.org/sdr/CALA9700048.md): Skin · cracked · Dec 10, 1996 · N77204 · Boeing 737130 · Fuselage Main, Plate/Skin > INSPECTION FOUND A 2.25 INCH CRACK IN RT FUSELAGE SKIN AT STA 745 BETWEEN STRINGERS 15R AND 16R. THE CRACKED AREA WAS REMOVED AND A DOUBLER WAS INSTALLED IAW SRM 51-30-2. - [SDR CALA9700051](https://openairdocs.org/sdr/CALA9700051.md): Skin · corroded · Dec 7, 1996 · N77204 · Boeing 737130 · Wing, Plate/Skin > INSPECTION FOUND LT WING ROOT LOWER SKIN PANEL CORRODED. THE SKIN WAS REPAIRED IAW ECRA 5730-01471. - [SDR CALA9601601](https://openairdocs.org/sdr/CALA9601601.md): Hyd Line · broken · Nov 9, 1996 · N77204 · Boeing 737130 · Hydraulic System, Main > THE A-HYDRAULIC SYSTEM PRESSURE AND QUANTITY DROPPED TO ZERO WHEN GEAR WAS LOWERED ON FINAL APPROACH TO CLE. THE FLAPS WERE LOWERED TO 15 DEGREES ELECTRICALLY AND THE AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE FOUND THE NR 4 SLAT ACTUATOR HYDRAULIC LINE B - [SDR CALA9601136](https://openairdocs.org/sdr/CALA9601136.md): Fireloop · malfunctioned · Aug 7, 1996 · N77204 · Boeing 737130 · Fire Detection > THE NR 1 ENGINE FIRE WARNING LIGHT AND BELL ACTIVATED DURING CLIMB OUT OF EWR. BOTH FIRE BOTTLES WERE DISCHARGED, THE NR 1 ENGINE WAS SHUTDOWN, AND AIRCRAFT WAS RETURNED TO EWR WHERE IT LANDED WITHOUT INCIDENT. MAINTENANCE FOUND THE NR 1 ENGINE BOTTOM FIRE D - [SDR CALA9600827](https://openairdocs.org/sdr/CALA9600827.md): Hyd Line · chafed · Jun 16, 1996 · N77204 · Boeing 737130 · Hydraulic System, Main > THE A-SYSTEM HYDRAULIC QUANTITY DROPPED TO ZERO WHILE EN ROUTE. THE HYDRAULIC LOSS CHECKLIST WAS COMPLIED WITH AND THE AIRCRAFT WAS DIVERTED TO GSO WHERE IT LANDED WITHOUT INCIDENT. MAINTENANCE FOUND THE A-SYSTEM HYDRAULIC SUPPLY LINE IN THE RT REAR SPAR ARE - [SDR CAL950980](https://openairdocs.org/sdr/CAL950980.md): Actuator · inoperative · Oct 27, 1995 · N77204 · Boeing 737130 · Leading Edge Slat Actuator > FLT NR 1598 - GSO - THE NR 4 SLAT WOULD NOT RETRACT DURING CLIMB-OUT OF GSO, THE AIRCRAFT WAS RETURNED TO GSO. MAINTENANCE FOUND THE NR 4 LEADING EDGE SLAT ACTUATOR AT FAULT. THE ACTUATOR WAS REMOVED AND REPLACED. LEAK AND OPERATIONAL CHECKS WERE GOOD. (M - [SDR CAL950873](https://openairdocs.org/sdr/CAL950873.md): Track · cracked · Sep 18, 1995 · N77204 · Boeing 737130 · Trailing Edge Flaps > EWR - INSPECTION FOUND A.25 INCH CRACK IN LT OUTBOARD TRAILING EDGE FLAP TRACK. THE CRACKED AREA WAS REPAIRED IAW ECRA 5750-02364. (X) - [SDR CAL950261](https://openairdocs.org/sdr/CAL950261.md): Intercostal · cracked · Apr 1, 1995 · N77204 · Boeing 737130 · Fuselage Miscellaneous Structure > GSO - INSPECTION FOUND A.50 INCH CRACK IN INTERCOSTAL UPPER FLANGE AT BS 984, LBL 37. THE INTERCOSTAL WAS REMOVED AND REPAIR PARTS WERE FABRICATED AND INSTALLED IAW SRM 53-10-2 AND SRM 51-30-0. (X) - [SDR CAL950260](https://openairdocs.org/sdr/CAL950260.md): Angle · cracked · Apr 1, 1995 · N77204 · Boeing 737130 · Fuselage Miscellaneous Structure > GSO - INSPECTION FOUND A.50 INCH CRACK IN FRAME TO STRINGER ATTACH ANGLE AT STR 26R, STA 333. THE CRACKED ANGLE WAS REMOVED AND A NEW ANGLE WAS FABRICATED AND INSTALLED IAW SRM 51-10-2, SRM 51-30-2, AND SRM 53-10-3. (X) - [SDR CAL950259](https://openairdocs.org/sdr/CAL950259.md): Stringer · cracked · Apr 1, 1995 · N77204 · Boeing 737130 · Fuselage Main, Longeron/Stringer > GSO - INSPECTION FOUND A 1 INCH CRACK IN STR 28R, LOCATED IN THE FORWARD PIT AT STA 420 - STA 440. THE DAMAGED AREA WAS CUT OUT AND CHANNEL FILLER AND SHIMS WERE INSTALLED IAW SRM 53-10-3, SRM 51-10-2, AND SRM 51-30-2. (X) - [SDR CAL950258](https://openairdocs.org/sdr/CAL950258.md): Stringer · corroded · Apr 1, 1995 · N77204 · Boeing 737130 · Fuselage Main, Longeron/Stringer > GSO - INSPECTION FOUND CORROSION ON STR 27R AT STA 446. REPAIR ANGLES WERE FABRICATED AND INSTALLED IAW SRM 53-10-3 AND SRM 51-30-2. (X) - [SDR CAL950257](https://openairdocs.org/sdr/CAL950257.md): Angle · corroded · Apr 1, 1995 · N77204 · Boeing 737130 · Fuselage Miscellaneous Structure > GSO - INSPECTION FOUND CORROSION INSIDE WEB OF DOOR SILL ANGLE AND NUT PLATES AT STA 440, STR 25R. A NEW ANGLE WAS INSTALLED IAW SRM 51-10-2 AND SRM 51-1-21A. (X) - [SDR CAL950256](https://openairdocs.org/sdr/CAL950256.md): Web · corroded · Apr 1, 1995 · N77204 · Boeing 737130 · Fuselage Miscellaneous Structure > GSO - NOSE WHEELWELL, LEFT UPPER PANEL WEB, WAS FOUND BULGED AT FORWARD EDGE AND THERE WAS CORROSION ON UPPER SURFACE AND INSIDE FASTENER HOLES. AN INTECOSTAL WAS FABRICATED AND INSTALLED IAW SRM 54-10-3 AND SRM 51-30-2. (X) - [SDR CAL950255](https://openairdocs.org/sdr/CAL950255.md): Web · corroded · Apr 1, 1995 · N77204 · Boeing 737130 · Fuselage Miscellaneous Structure > GSO - THE NOSE WHEELWELL, RT UPPER PANEL WEB, WAS FOUND BULGED AT FORWARD EDGE AND THERE WAS CORROSION INSIDE FASTENER HOLE. AN INTERCOSTAL WAS FABRICATED AND INSTALLED IAW SRM 54-10-3 AND SRM 51-30-2. (X) - [SDR CAL950254](https://openairdocs.org/sdr/CAL950254.md): Skin · cracked · Apr 1, 1995 · N77204 · Boeing 737130 · Fuselage Main, Plate/Skin > GSO - INSPECTION FOUND CRACK INDICATIONS IN SKIN AT LEFT FS BS 188-253, WL 208.1 TO WL 234.35. THE CRACKS WERE APPROXIMATELY.50 INCH LONG. THE CRACKED AREAS OF SKIN WERE CUT OUT AND DOUBLERS AND FILLERS WERE INSTALLED IAW EA 5310-01188. (X) ## 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 = 'N77204' AND deregistration_id = 'N77204-1999-03-17' ORDER BY difficulty_date DESC ``` This list as a web page: https://openairdocs.org/deregistered/N77204-1999-03-17/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.