# Service difficulty reports: Boeing 747-4H6F

A list on [Boeing 747-4H6F](https://openairdocs.org/model/boeing-747-4h6f.md).

Newest first. General aviation reporting is voluntary.

- [SDR UIEA2026031600090](https://openairdocs.org/sdr/UIEA2026031600090.md): Not Reported · not reported · Mar 15, 2026 · N431GT · Boeing 7474H6F · Nacelle/Pylon Structure
  > DEVIATION FOUND DURING PERFORMING SB-747-54A2245 ON BOTH SIDES ON NR 1 & 4 PYLON. PERFORM EI T2026A54M-360 REV 0. 2) ACCOMPLISH IAW EI T2026A54M-360 REV 1. 3) JOB COMPLETED AND CONDITION CHECK NORMAL</P>)
- [SDR UIEA2025122001354](https://openairdocs.org/sdr/UIEA2025122001354.md): Adc · faulted · Dec 19, 2025 · N430GT · Boeing 7474H6F · Air Data Computer
  > IAS DISAGREE EICAS MSG AFTER T/O & ALT DISAGREE EICAS MSG AT 7000 FT. REMOVED AND REPLACED L/H AIR DATA COMPUTER IAW AMM 34-12-01. PITOT STATIC LEAK CHK OK IAW AMM 34-11-00. ALTIMETER SYSTEM ACCURACY TEST OK IAW AMM 34-41-00. REMOVED AND REPLACED LEFT UPPER P
- [SDR UIEA2025092101242](https://openairdocs.org/sdr/UIEA2025092101242.md): Pump · illuminated · Sep 21, 2025 · N430GT · Boeing 7474H6F · Hydraulic Pump (Electric/Engine), Main
  > HYD PRESS SYS 1 EICAS CAUTION; HYD QTY LOW EICAS CAUTION, HYD OVHT SYS 1 EICAS, GEAR DOOR CAUTION - BODY GEAR RIGHT DOOR. R & R THE NLG DOOR ACTUATOR PER AMM 32-34-14. OPS & LK CHK GOOD PER AMM 32-34-14. INSTALLED NEW EDP IAW AMM 29-11-05 & IPC 29-11-05-02B.
- [SDR UIEA2025090401160](https://openairdocs.org/sdr/UIEA2025090401160.md): Fmc · faulted · Sep 3, 2025 · N430GT · Boeing 7474H6F · Flight Management Computing Hardware System
  > ONE HOUR, THREE MINUTES INTO FLIGHT, BOTH ND'S HAVE YELLOW MAP FAULT DISPLAYED. NO ROUTE OR MAGENTA LINE SHOWN, EIU SOURCE SEL AND CTR C/B CYCLED. REPLACED LT FMC PER AMM 34-61-01, TESTED GOOD IAW AMM 34-61-00 & IPC 34-61-01.
- [SDR UIEA2025090201151](https://openairdocs.org/sdr/UIEA2025090201151.md): Window · leaking · Aug 31, 2025 · N430GT · Boeing 7474H6F · Flight Compartment Windows
  > R2 WINDOW HAS HIGH WIND NOISE. THE HIGHER THE AIRCRAFT CLIMBS, THE LOUDER THE NOISE BECOMES(<P>APPLIED FILLER TO LOWER LH AND RH WINDOW FRAME CORNER ON R2 POSITION PER AMM 20-30-01, BOEING TLS 25-0574-02B AND BOEING EID 65B07610 SHEET 5. INSTALLED NEW R2 WINDO
- [SDR UIEA2025080501090](https://openairdocs.org/sdr/UIEA2025080501090.md): Manifold · damaged · Aug 5, 2025 · N430GT · Boeing 7474H6F · Smoke Detection
  > FLIGHT CREW REPORTED MOMENTARY FIRE WARNING MESSAGE ON EICAS. FOUND DAMAGE TO THE 8TH STAGE MANIFOLD. REPLACED 8TH STAGE MANIFOLD IAW AMM 36-11-01/401 PER 114 & IPC 36-11-05-01B REV 89. PERFORMED NR 2 ENG PNEUMATIC LEAK TEST IAW AMM 71-00-00-705-002-N00. LE
- [SDR UIEA2025062500801](https://openairdocs.org/sdr/UIEA2025062500801.md): Connector · damaged · Jun 25, 2025 · N431GT · Boeing 7474H6F · Air Conditioning System Wiring
  > PACK 1 EICAS ADVISORY MESSAGE AFTER TAKEOFF. ORH 224 DID NOT CORRECT PACK 1 SELECTED OFF. PACK 1 STATUS AFTER RETURN TO SUU.(<P>REMOVED AND REPLACED RAM INLET DOOR ACTUATOR CONNECTOR IAW B747-400 WDM 21-62-11 ON PACK #1 AND STANDARD WIRING WIRING PRACTICES 20-
- [SDR UIEA2025041400476](https://openairdocs.org/sdr/UIEA2025041400476.md): Display · inoperative · Apr 14, 2025 · N431GT · Boeing 7474H6F · Central Warning
  > AFTER TAKE OFF AT 400FT AGL, ALL 6 EFIS/EICAS SCREENS BLANK & CDU SCREEN BLANK 5 TO 10 SECONDS, ALL CAME BACK.(<P>PER MCC REQUEST, PERFORMED ENGINE RUNS FOR MIN 20-MIN. RAN ENGINES PER AMM 71-00-00. PERFORMED POWER TRANSFER REF AMM 24-22-00 COULD NOT DUPLICATE
- [SDR UIEA2025031400334](https://openairdocs.org/sdr/UIEA2025031400334.md): Bulkhead Web · cracked · Mar 23, 2025 · N430GT · Boeing 7474H6F · Fuselage Main, Bulkhead
  > DURING ACCOMPLISH EO 4453C449_CS LH CLOSEOUT PANEL REPLACEMENT FOUND I/B SIDE CANTED PRESSURE BULKHEAD WEB FASTENER HOLE CRACKED.(<P>WORK ACCOMPLISHED <SPAN>7075T6-0.125" & 7075T6-0.063" </SPAN><SPAN>IAW EN 1014-25 REV 0.</SPAN></P>)
- [SDR UIEA2025031900357](https://openairdocs.org/sdr/UIEA2025031900357.md): Seat Track · corroded · Mar 23, 2025 · N430GT · Boeing 7474H6F · Fuselage, Seat/Cargo Attach Fittings
  > CABIN STA 1000 LBL 33 FOUND SEAT TRACK CORROSION AS MARKED.(<P>CABIN STA 1000 LBL 33 SEAT TRACK REPAIR CARRIED OUT IAW B747-400F SRM 53-00-52 FIG 201 REV 103 AND EN# 1020-25 REV 0. NO FURTHER DEFECTS NOTED.</P>)
- [SDR UIEA2025031900358](https://openairdocs.org/sdr/UIEA2025031900358.md): Stiffener · corroded · Mar 23, 2025 · N430GT · Boeing 7474H6F · Fuselage Miscellaneous Structure
  > FWD CARGO COMP STIFFENER AT STA 1000 LBL 26 BWL 110 FOUND CORRODED.(<P>WORK ACCOMPLISHED IAW EN# 1021-25 REV 0. NO FURTHER DEFECTS NOTED.</P>)
- [SDR UIEA2025031900359](https://openairdocs.org/sdr/UIEA2025031900359.md): Longeron · cracked · Mar 23, 2025 · N430GT · Boeing 7474H6F · Fuselage Structure (General)
  > DURING HFEC INSPECTION, FOUND CRACK AT LONGERON EXTENSION FITTING STA 1480 LHS & RHS APPROX CRACK LENGTH = 0.6" RHS AND 0.4" LHS AS MARKED.(<P>WORK ACCOMPLISHED IAW EN# 1018-25 REV 0. NO FURTHER DEFECTS NOTED.</P>)
- [SDR UIEA2025031900360](https://openairdocs.org/sdr/UIEA2025031900360.md): Support Fitting · obstructed · Mar 23, 2025 · N430GT · Boeing 7474H6F · Nacelle/Pylon, Main Frame
  > DURING ACCOMPLISH EO 4454A215_CS NACELLE STRUT PW4000 NO.1 & NO.4 OUTER SPRING BEAM SUPPORT FTG. WHILE LOCATE FILLE P/N: 321U2400-5602 AT FASTENER CODE A LOCATION. FOUND TOO CLOSE TO EXISTING BULKHEAD.(<P>WORK ACCOMPLISHED IAW EN# 1013-25 REV 0. NO FURTHER DEF
- [SDR UIEA2025031900362](https://openairdocs.org/sdr/UIEA2025031900362.md): Rub Strip · obstructed · Mar 23, 2025 · N430GT · Boeing 7474H6F · Fuselage Structure (General)
  > DURING PERFORMING LH AND RH RUB STRIP INSTALLATION PER SB 747-53A2721R3/ AD 2013-26-12, FOUND AFT RUB STRIPS INTERFERING WITH EXISTING PROTUDING HEAD FASTENERS ON FUSELAGE SKIN AT BS2517 TO 2628 LH AND RH(<P>WORK ACCOMPLISHED IAW EN# 1019-25 REV 0. NO FURTHER
- [SDR UIEA2024113001138](https://openairdocs.org/sdr/UIEA2024113001138.md): Window · damaged · Nov 30, 2024 · N431GT · Boeing 7474H6F · Passenger Compartment Windows
  > RH UPPER DECK CTR SIDE WINDOW DAMAGED(<P>R/R WINDOW IAW AMM 56-21-01. OPS & LEAK CHK OK.</P>)
- [SDR UIEA2024081500831](https://openairdocs.org/sdr/UIEA2024081500831.md): Skin · dented · Aug 17, 2024 · N430GT · Boeing 7474H6F · Trailing Edge Flaps
  > DENT AT RH WING FLAP LOWER SURFACE 58" FROM INBD END(<P>INSTALLED FABRICATED DOUBLER AT RH WING FLAP LOWER SURFACE 58" FROM INBD END AND 27" FROM LOWER T/E IAW SRM 51-70-10-2R-0. NO FURTHER DEFECTS NOTED</P>)
- [SDR UIEA2024081500830](https://openairdocs.org/sdr/UIEA2024081500830.md): Skin · dented · Aug 17, 2024 · N430GT · Boeing 7474H6F · Trailing Edge Flaps
  > SEVERAL DENTS AT LH WING INBD MID FLAP LOWER SURFACE(<P>INSTALLED, FABRICATED DOUBLER ON LH WING MID FLAP IAW SRM 51-70-10-212-0 PAR 20B TABLE 208. NO FURTHER DEFECTS NOTED</P>)
- [SDR UIEA2024081600835](https://openairdocs.org/sdr/UIEA2024081600835.md): Rub Strip · gouged · Aug 17, 2024 · N430GT · Boeing 7474H6F · Spoilers
  > LH WING #5 SPOILER LOWER SKIN T/E RUB STRIP GOUGED(<P>ACCOMPLISHED PERMANENT REPAIR ON #5 SPOILER LOWER SKIN IAW B747 SRM 51-70-10-2R & 57-70-02-2R-1. NO FURTHER DEFECTS NOTED</P>)
- [SDR UIEA2024080400787](https://openairdocs.org/sdr/UIEA2024080400787.md): Actuator · faulted · Aug 4, 2024 · N431GT · Boeing 7474H6F · Main Landing Gear
  > EICAS MSG "GEAR TILT" ON TAKE-OFF. REPLACED RH BODY GEAR TILT ACTUATOR AND RH BODY GEAR TRUCK POSITIONING FUSE AND OPS CHECKS NORMAL PER AMM 32-13-15, 32-13-24, 32-32-00, 32-34-00 AND IPC 32-13-15-02A.
- [SDR UIEA2024080200775](https://openairdocs.org/sdr/UIEA2024080200775.md): Actuator · no test · Aug 2, 2024 · N431GT · Boeing 7474H6F · Landing Gear Actuator
  > DURING BLG ALTERNATE EXTENSION TEST, FOUND R/H BLG ROTARY ACTUATOR FUNCTION FAIL. IAW AMM 32-35-01-004-001 REV 110 AND AMM 32-35-01-404-007 REV 110 R/R RH BLG ROTARY ACTUATOR. 2. IAW AMM 32-35-00-715-059 REV 110 PFM OPERATION TEST, TEST RESULT WAS SATISFACTO
- [SDR UIEA2024080200774](https://openairdocs.org/sdr/UIEA2024080200774.md): Seat Track · cracked · Aug 2, 2024 · N431GT · Boeing 7474H6F · Fuselage, Seat/Cargo Attach Fittings
  > CRACK - FOUND M/D SEAT TRACK CRACK AT STA 1700 AND STA 1760, LBL 11.33.</SPAN></SPAN>(<P>1. REMOVED AFFECTED FASTERNERS TO GET ACCESS IAW SRM 51-40-02-0G-0 REV 101 2. REPAIR DAMAGE AREA IAW EI NO: T2024A53M-1802 REV 1 3. INSTALLED FASTERNERS IAW SRM 51-40-02-0
- [SDR UIEA2024080200773](https://openairdocs.org/sdr/UIEA2024080200773.md): Seat Track · cracked · Aug 2, 2024 · N431GT · Boeing 7474H6F · Fuselage, Seat/Cargo Attach Fittings
  > FOUND M/D STA 1860, RBL 98.58 SEAT TRACK CROWN CRACK. REMOVED AFFECTED FASTERNERS TO GET ACCESS IAW SRM 51-40-02-0G-0 REV 101 2. REPAIR DAMAGE AREA IAW W/S #40566 (SRM 53-00-52-2R-6 REV=101) AND EI T2024A53M-1791 REV 1. 3. INSTALLED FASTERNERS IAW SRM 51-40-0
- [SDR UIEA2024080200772](https://openairdocs.org/sdr/UIEA2024080200772.md): Cargo Track · cracked · Aug 2, 2024 · N431GT · Boeing 7474H6F · Fuselage, Seat/Cargo Attach Fittings
  > CRACK - FOUND TRACK - SUBSTITUTE WAS CRACK AT M/D STA 1700, LBL 75.(<P>1. REMOVED AFFECTED FASTERNERS TO GET ACCESS IAW SRM 51-40-02-0G-0 REV 101 2. REPAIR DAMAGE AREA IAW W/S #40562 (SRM 52-00-52-2R-13 REV 101) 3. INSTALLED FASTERNERS IAW SRM 51-40-02-0G-0 RE
- [SDR UIEA2024080200771](https://openairdocs.org/sdr/UIEA2024080200771.md): Cargo Track · cracked · Aug 2, 2024 · N431GT · Boeing 7474H6F · Fuselage, Seat/Cargo Attach Fittings
  > CRACK - FOUND TRACK - SUBSTITUTE WAS CRACK AT M/D BETWEEN STA 980 ~ STA 1000, LBL 75.(<P>1. REMOVED AFFECTED FASTERNERS TO GET ACCESS IAW SRM 51-40-02-0G-0 REV 101 2. REPAIR DAMAGE AREA IAW W/S #40561 (SRM 53-00-52-2R-13 REV 101) 3. INSTALLED FASTERNERS IAW SR
- [SDR UIEA2024080200770](https://openairdocs.org/sdr/UIEA2024080200770.md): Cargo Track · cracked · Aug 2, 2024 · N431GT · Boeing 7474H6F · Fuselage, Seat/Cargo Attach Fittings
  > CRACK - FOUND M/D TRACK - SUBSTITUTE CRACK AT STA 995 RBL 75.92.(<P>1. REPAIR DAMAGE AREA IAW W/S #40565 (SRM 53-00-52-2R-13 REV 101) 2. JOB COMPLETED AND CONDITION CHECK NORMAL.</P>)
- [SDR UIEA2024080200769](https://openairdocs.org/sdr/UIEA2024080200769.md): Tension Tie · cracked · Aug 2, 2024 · N431GT · Boeing 7474H6F · Fuselage Miscellaneous Structure
  > CRACK - PERFORM OPEN HOLE INSPECTION FOUND TENSION TIE HAS CRACK AT R/H STA 760. PERFORM EO 4453A301 PART 1-2 REV 12. 2. CONDITION CHECK NORMAL AND JOB COMPLETED.
- [SDR UIEA2024080200768](https://openairdocs.org/sdr/UIEA2024080200768.md): Tension Tie · cracked · Aug 2, 2024 · N431GT · Boeing 7474H6F · Fuselage Miscellaneous Structure
  > CRACK - PERFORM OPEN HOLE INSPECTION FOUND TENSION TIE HAS CRACK AT L/H STA 740. PERFORM EO 4453A301 PART 1-2 REV 12. 2. CONDITION CHECK NORMAL AND JOB COMPLETED.
- [SDR UIEA2024080200767](https://openairdocs.org/sdr/UIEA2024080200767.md): Tension Tie · cracked · Aug 2, 2024 · N431GT · Boeing 7474H6F · Fuselage Miscellaneous Structure
  > CRACK - PERFORM OPEN HOLE INSPECTION FOUND TENSION TIE HAS CRACK AT L/H STA 720. PERFORM EO 4453A301 PART 1-2 REV 12. 2. CONDITION CHECK NORMAL AND JOB COMPLETED.
- [SDR KCSA202205161052](https://openairdocs.org/sdr/KCSA202205161052.md): Fitting · corroded · May 16, 2022 · N741CK · Boeing 7474H6F · Elevator Structure
  > LH INBOARD ELEVATOR ACTUATOR O/B FITTING HAS EVIDENCE OF CORROSION.
- [SDR KCSA11021](https://openairdocs.org/sdr/KCSA11021.md): Engine · leaking · Apr 13, 2011 · N740CK · Boeing 7474H6F · Engine (Turbine/Turboprop)
  > SMOKE IN FLT DECK & CABIN DURING CRUISE. DECLARED EMERGENCY AND DIVERTED TO EDDF. PERFORMED FIM TASK 21-00 TASK 810 & 71-03 TASK 854. FOUND OIL (ENG) IN TAIL PIPE. REMOVED & REPLACED THE NR 4 ENG IAW B747-400 MM 71-00-02, PERFORMED ENG TEST NR 7 IAW B747-4

## 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 aircraft_model_key = '7474H6F'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/model/boeing-747-4h6f/reports

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