# Service difficulty reports: Boeing 747-4B5

A list on [Boeing 747-4B5](https://openairdocs.org/model/boeing-747-4b5.md).

Newest first. General aviation reporting is voluntary.

Page 1 of 5 · 241 reports

- [SDR KCSA2026101260](https://openairdocs.org/sdr/KCSA2026101260.md): Battery · no test · Oct 12, 2026 · N707CK · Boeing 7474B5 · Emergency Lighting
  > LEFT EMERGENCY DOOR BATTERY TEST FAILED. REPLACED LH EMERGENCY DOOR BATTERY PACK IAW B747-400 AMM 52-23-14. OPS CHECK GOOD. NO DEFECTS NOTED. PLACARDS REMOVED. THIS CLEARS DMI 100355921.
- [SDR KCSA202609221220](https://openairdocs.org/sdr/KCSA202609221220.md): Battery Pack · inoperative · Sep 22, 2026 · N708CK · Boeing 7474B5 · Emergency Lighting
  > BATTERY LIGHT DOES NOT ILLUMINATE FOR L/H FLOOR MOUNTED ESCAPE SLIDE
- [SDR KCSA202609221219](https://openairdocs.org/sdr/KCSA202609221219.md): Bulb · inoperative · Sep 22, 2026 · N708CK · Boeing 7474B5 · Emergency Lighting
  > UPPER DECK EMERGENCY LIGHTS INOP AT APPROX BS 420, 520 AND 620
- [SDR KCSA202609221218](https://openairdocs.org/sdr/KCSA202609221218.md): Stringer · cracked · Sep 22, 2026 · N708CK · Boeing 7474B5 · Fuselage Main, Longeron/Stringer
  > STRINGER 10R AT STA 500 CRACKED
- [SDR KCSA202609221217](https://openairdocs.org/sdr/KCSA202609221217.md): Stiffener · cracked · Sep 22, 2026 · N708CK · Boeing 7474B5 · Cargo/Baggage Doors
  > AFT CARGO DOOR FORWARD VENT DOOR FORWARD AND AFT STIFFENERS CRACKED ON LOWER RADIUS
- [SDR KCSA202609221216](https://openairdocs.org/sdr/KCSA202609221216.md): Floorbeam · corroded · Sep 22, 2026 · N708CK · Boeing 7474B5 · Fuselage Main, Floor Beam
  > RT UPPER DECK FLOOR FRAME UPPER TEE, AT BS 340 CORRODED AT RBL 32.
- [SDR KCSA202609221215](https://openairdocs.org/sdr/KCSA202609221215.md): Shear Web · corroded · Sep 22, 2026 · N708CK · Boeing 7474B5 · Fuselage Miscellaneous Structure
  > SHEAR WEB ON UPPER DECK FLOOR, BS 340-360, BL 0 HAD CORROSION
- [SDR KCSA202609221214](https://openairdocs.org/sdr/KCSA202609221214.md): Mount · cracked · Sep 22, 2026 · N708CK · Boeing 7474B5 · Cargo/Baggage Doors
  > FORWARD CARGO DOOR FORWARD ROTARY ACTUATOR LIFT LINK ATTACH FITTING MOUNT CRACKED.
- [SDR KCSA202609221213](https://openairdocs.org/sdr/KCSA202609221213.md): Stringer · cracked · Sep 22, 2026 · N708CK · Boeing 7474B5 · Fuselage Main, Longeron/Stringer
  > STRINGER 10L, BS 500 CRACKED.
- [SDR KCSA202609221212](https://openairdocs.org/sdr/KCSA202609221212.md): Floor Support · cracked · Sep 22, 2026 · N708CK · Boeing 7474B5 · Fuselage Miscellaneous Structure
  > FORWARD CARGO INTERCOSTAL CRACKED, LBL 45.5, BS 827-832.
- [SDR KCSA202609221211](https://openairdocs.org/sdr/KCSA202609221211.md): Floor Support · cracked · Sep 22, 2026 · N708CK · Boeing 7474B5 · Fuselage Miscellaneous Structure
  > FORWARD CARGO INTERCOSTAL CRACKED, LBL 45.5, BS 504
- [SDR KCSA202609221210](https://openairdocs.org/sdr/KCSA202609221210.md): Cargo Track · corroded · Sep 22, 2026 · N708CK · Boeing 7474B5 · Fuselage, Seat/Cargo Attach Fittings
  > RIGHT AFT CARGO TRACK AT BS 1820, RBL 25 CORRODED AT TWO FASTENER LOCATIONS.
- [SDR KCSA202609221209](https://openairdocs.org/sdr/KCSA202609221209.md): Attach Angle · cracked · Sep 22, 2026 · N708CK · Boeing 7474B5 · Fuselage Main, Attach Fittings
  > RIGHT NLG WW SIDEWALL STIFFENER TO VERTICAL BEAM ATTACH ANGLE AT BS 340, WL 170, CRACKED.
- [SDR KCSA202609221208](https://openairdocs.org/sdr/KCSA202609221208.md): Attach Angle · cracked · Sep 22, 2026 · N708CK · Boeing 7474B5 · Fuselage Main, Attach Fittings
  > LEFT NLG WW SIDEWALL STIFFENER TO VERTICAL BEAM ATTACH ANGLE AT BS 340, WL 170, CRACKED.
- [SDR KCSA2026051826](https://openairdocs.org/sdr/KCSA2026051826.md): Slide · deployed · May 18, 2026 · N708CK · Boeing 7474B5 · Escape Slide
  > 100326532: UPPER DECK LH DOOR SLIDE DEPLOYED. REMOVED AND REPLACED LH DOOR SLIDE IAW B747-400 AMM 25-68-01, TEST NORMAL.
- [SDR KCSA202604201622](https://openairdocs.org/sdr/KCSA202604201622.md): Arming Lever · binding · Apr 16, 2026 · N707CK · Boeing 7474B5 · Emergency Exits
  > ARMING LEVER FOR ESCAPE SLIDE HARD TO MOVE TO AUTO/ARM POSITION, DOOR UPPER DECK RT A/T. INSPECTED & LUBED ARMING LEVER MECHANISM & SYS OPS CHK GOOD IAW AMM 52-23-07
- [SDR KCSA202604111030](https://openairdocs.org/sdr/KCSA202604111030.md): Battery · inoperative · Apr 11, 2026 · N709CK · Boeing 7474B5 · Emergency Equipment
  > FO'S EMERGENCY FLASHLIGHT INOP
- [SDR KCSA202604111029](https://openairdocs.org/sdr/KCSA202604111029.md): Battery · inoperative · Apr 11, 2026 · N709CK · Boeing 7474B5 · Emergency Equipment
  > CA'S EMERGENCY FLASHLIGHT INOP.
- [SDR KCSA202603311027](https://openairdocs.org/sdr/KCSA202603311027.md): Pressure Deck · cracked · Mar 31, 2026 · N707CK · Boeing 7474B5 · Wing Main, Frame Structure
  > RIGHT WING GEAR WHEEL WELL CANTED PRESSURE DECK COMPOSITE PANEL HAS EVIDENCE OF A CRACK
- [SDR KCSA202603311026](https://openairdocs.org/sdr/KCSA202603311026.md): Web · cracked · Mar 31, 2026 · N707CK · Boeing 7474B5 · Horizontal Stabilizer Miscellaneous Structure
  > L/H HORIZONTAL STAB OTBD CLOSURE RIB WEB CRACKED
- [SDR KCSA202603311025](https://openairdocs.org/sdr/KCSA202603311025.md): Support Angle · cracked · Mar 31, 2026 · N707CK · Boeing 7474B5 · Horizontal Stabilizer Miscellaneous Structure
  > L/H HORIZONTAL STAB UPPER TIP FAIRING SUPPORT CRACKED APPROX 26 IN. FROM STAB T/E
- [SDR KCSA202603311024](https://openairdocs.org/sdr/KCSA202603311024.md): Support Angle · cracked · Mar 31, 2026 · N707CK · Boeing 7474B5 · Horizontal Stabilizer Miscellaneous Structure
  > L/H HORIZONTAL STAB LWR TIP FAIRING SUPPORT CRACKED APPROX 38.5 IN. FROM STAB T/E
- [SDR KCSA202603311023](https://openairdocs.org/sdr/KCSA202603311023.md): Spar · corroded · Mar 31, 2026 · N707CK · Boeing 7474B5 · Fuselage Main, Frame
  > CORROSION FOUND EXTERIOR AFT SPAR AT CENTER TANK R/H OVRD/ JETTISON PUMP
- [SDR KCSA202603311022](https://openairdocs.org/sdr/KCSA202603311022.md): Support Angle · cracked · Mar 31, 2026 · N707CK · Boeing 7474B5 · Horizontal Stabilizer Miscellaneous Structure
  > L/H HORIZONTAL STAB LOWER TIP FAIRING SUPPORT CRACKED APPROX 29.5 IN. FROM STAB T/E
- [SDR KCSA202603311021](https://openairdocs.org/sdr/KCSA202603311021.md): Beam · corroded · Mar 31, 2026 · N707CK · Boeing 7474B5 · Fuselage Main, Structure
  > FOUND EVIDENCE OF CORROSION ON FORWARD (STA. 660-680) CARGO COMPARTMENT LATERAL BEAM ACCESS DOOR.
- [SDR KCSA202603311020](https://openairdocs.org/sdr/KCSA202603311020.md): Pressure Deck · cracked · Mar 31, 2026 · N707CK · Boeing 7474B5 · Fuselage Main, Structure
  > RIGHT WING GEAR WHEEL WELL CANTED PRESSURE DECK WEB CRACKED AT STA 1238, RBL 75
- [SDR KCSA202603311019](https://openairdocs.org/sdr/KCSA202603311019.md): Web · cracked · Mar 31, 2026 · N707CK · Boeing 7474B5 · Horizontal Stabilizer Miscellaneous Structure
  > R/H HORIZONTAL STAB OTBD CLOSURE RIB WEB CRACKED
- [SDR KCSA202603311018](https://openairdocs.org/sdr/KCSA202603311018.md): Support · cracked · Mar 31, 2026 · N707CK · Boeing 7474B5 · Horizontal Stabilizer Miscellaneous Structure
  > R/H HORIZONTAL STAB TIP RIB HAS CRACK ON PANEL SUPPORT EDGE LOWER CHORD
- [SDR KCSA202603311017](https://openairdocs.org/sdr/KCSA202603311017.md): Support · cracked · Mar 31, 2026 · N707CK · Boeing 7474B5 · Horizontal Stabilizer Miscellaneous Structure
  > R/H HORIZONTAL STAB TIP RIB HAS CRACK ON PANEL SUPPORT EDGE LOWER CHORD
- [SDR KCSA202603311016](https://openairdocs.org/sdr/KCSA202603311016.md): Support · cracked · Mar 31, 2026 · N707CK · Boeing 7474B5 · Horizontal Stabilizer Miscellaneous Structure
  > R/H HORIZONTAL STAB TIP RIB HAS CRACK ON PANEL SUPPORT EDGE UPPER CHORD
- [SDR KCSA202603311015](https://openairdocs.org/sdr/KCSA202603311015.md): Support · cracked · Mar 31, 2026 · N707CK · Boeing 7474B5 · Horizontal Stabilizer Miscellaneous Structure
  > R/H HORIZONTAL STAB TIP RIB HAS CRACK ON PANEL SUPPORT EDGE UPPER CHORD
- [SDR KCSA202603311014](https://openairdocs.org/sdr/KCSA202603311014.md): Support · cracked · Mar 31, 2026 · N707CK · Boeing 7474B5 · Horizontal Stabilizer Structure
  > RT HORIZONTAL STAB TIP RIB HAS CRACK ON PANEL SUPPORT EDGE LOWER CHORD.
- [SDR KCSA202603311013](https://openairdocs.org/sdr/KCSA202603311013.md): Frame · cracked · Mar 31, 2026 · N707CK · Boeing 7474B5 · Passenger/Crew Doors
  > R2 DOOR INTERIOR STRUCTURE HAS CRACK, LOWER AFT CORNER.
- [SDR KCSA202603311012](https://openairdocs.org/sdr/KCSA202603311012.md): Frame · cracked · Mar 31, 2026 · N707CK · Boeing 7474B5 · Service Doors
  > R4 DOOR STRUCTURE IS CRACKED, LOWER AFT CORNER
- [SDR KCSA2026033017](https://openairdocs.org/sdr/KCSA2026033017.md): Light · inoperative · Mar 30, 2026 · N709CK · Boeing 7474B5 · Emergency Lighting
  > MULTIPLE SIDEWALL LIGHTS INOP ON MAIN DECK. REMOVED AND REPLACED MULTIPLE SIDEWALL LIGHTS IAW AMM 33-51-00. ALL CHECKS GOOD. NO DEFECTS NOTED.
- [SDR KCSA202601061000](https://openairdocs.org/sdr/KCSA202601061000.md): Reservoir · low pressure · Jan 6, 2026 · N709CK · Boeing 7474B5 · Escape Slide
  > LEFT FWD FLOOR EVACUATION SLIDE RESERVOIR FOUND TO BE NOT WITHIN PRESSURE LIMITS
- [SDR KCSA202511271227](https://openairdocs.org/sdr/KCSA202511271227.md): Lamp · inoperative · Nov 27, 2025 · N708CK · Boeing 7474B5 · Emergency Lighting
  > ONE LIGHT INOP IN MAIN DECK EMERGENCY LIGHT ASSEMBLY.
- [SDR KCSA202512121245](https://openairdocs.org/sdr/KCSA202512121245.md): Lamp · inoperative · Nov 26, 2025 · N708CK · Boeing 7474B5 · Emergency Lighting
  > AFT EMERGENCY LIGHT ON L/H UPPER DECK INOP
- [SDR KCSA2025111865](https://openairdocs.org/sdr/KCSA2025111865.md): Pump · faulted · Nov 18, 2025 · N708CK · Boeing 7474B5 · Hydraulic Pump (Electric/Engine), Main
  > 100280839: HYD QTY LOW 1 DEMAND PUMP AND ENGINE PUMP BOTH OFF BEFORE SYS FLUID 0. ACTION TAKEN: REMOVED AND REPLACED #1 EDP HYD 1. IAW B747-400 AMM 29-11-05-004 AND 29-11-05-904. ALL CHECKS GOOD. NO LEAKS NOTED. DRY MOTOR PERFORMED. NO DEFECTS NOTED.
- [SDR KCSA2025111263](https://openairdocs.org/sdr/KCSA2025111263.md): Actuator · unserviceable · Nov 12, 2025 · N708CK · Boeing 7474B5 · Landing Gear Actuator
  > GEAR DOOR ACTION TAKEN: REMOVED & REPLACED RH BODY LANDING GEAR DOOR ACTUATOR IAW B747-400 AMM 32-33-27. GEAR DOOR REMAINED INOP. SEE SDR SECTION 5. SPECIFIC PART OR STRUCTURE CAUSING DIFFICULTY FOR OFF PART INFORMATION. PN ON 1U1193-7 SN ON 3849. REF GEAR
- [SDR KCSA2025111800263](https://openairdocs.org/sdr/KCSA2025111800263.md): Actuator · unserviceable · Nov 12, 2025 · N708CK · Boeing 7474B5 · Landing Gear Position and Warning
  > GEAR DOOR, R & R RT BODY LANDING GEAR DOOR ACTUATOR IAW AMM 32-33-27. GEAR DOOR REMAINED INOPERATIVE. R & R BODY GEAR ALT-EXT ACTUATOR ROTARY IAW AMM 32-35-01. PERFORMED OPS CHECK IAW AMM 32-35-00. OPS CHECKED GOOD. RT BODY GEAR DOOR BUMP STOP MISSING BOL
- [SDR KCSA202509201168](https://openairdocs.org/sdr/KCSA202509201168.md): Bulb · inoperative · Sep 20, 2025 · N709CK · Boeing 7474B5 · Emergency Lighting
  > LADDER EMERGENCY LIGHT INOP
- [SDR KCSA2025080268](https://openairdocs.org/sdr/KCSA2025080268.md): Access Door · out of adjust · Aug 2, 2025 · N707CK · Boeing 7474B5 · Fixed Inner Doors
  > UPPER DECK ACCESS DOOR LATCHES WILL NOT LOCK. ADJUSTED AND ALIGNED UPPER DECK ACCESS DOOR LATCHES IAW AMM 20-00-00
- [SDR KCSA202512080268](https://openairdocs.org/sdr/KCSA202512080268.md): Latch · out of adjust · Aug 2, 2025 · N707CK · Boeing 7474B5 · Doors
  > UPPER DECK ACCESS DOOR LATCHES WILL NOT LOCK. ADJUSTED AND ALIGNED UPPER DECK ACCESS DOOR LATCHES IAW B747-400 AMM 20-00-00
- [SDR KCSA202507021108](https://openairdocs.org/sdr/KCSA202507021108.md): Bulkhead Web · cracked · Jul 2, 2025 · N707CK · Boeing 7474B5 · Fuselage Main, Bulkhead
  > L/H BODY LANDING GEAR WHEEL WELL BULKHEAD HAS A CRACK IN WEB AT STA 1480 WL 100 APPROX
- [SDR KCSA202507011107](https://openairdocs.org/sdr/KCSA202507011107.md): Sign · inoperative · Jul 1, 2025 · N709CK · Boeing 7474B5 · Emergency Lighting
  > SELF ILLUMINATED EXIT SIGNS FAIL OPS CHECK
- [SDR KCSA202507011106](https://openairdocs.org/sdr/KCSA202507011106.md): Seal Depressor · cracked · Jul 1, 2025 · N709CK · Boeing 7474B5 · Fuselage Main, Structure
  > R/H UPPER DECK CREW DOOR FWD UPPER CORNER SEAL DEPRESSOR CRACKED
- [SDR KCSA202507011105](https://openairdocs.org/sdr/KCSA202507011105.md): Seal Depressor · cracked · Jul 1, 2025 · N709CK · Boeing 7474B5 · Fuselage Main, Structure
  > L/H UPPER DECK CREW DOOR FWD UPPER CORNER SEAL DEPRESOR CRACKED
- [SDR KCSA202506261104](https://openairdocs.org/sdr/KCSA202506261104.md): Intercostal · cracked · Jun 26, 2025 · N709CK · Boeing 7474B5 · Cargo/Baggage Doors
  > LWR FWD CARGO DOOR AT APPROX BS 580 JUST AFT OF THE FWD LIFT ACTUATOR ON THE DOOR STRUCTURE THE INTERCOSTAL WEB IS CRACKED ABOUT 3" LONG
- [SDR KCSA202506261103](https://openairdocs.org/sdr/KCSA202506261103.md): Escape Reel · unwanted deploy · Jun 26, 2025 · N709CK · Boeing 7474B5 · Emergency Equipment
  > FLIGHT DECK EMERGENCY DESCENT DEVICE P/N 379103D-21 S/N 11800 EVIDENCE OF DEPLOYMENT

Next page: https://openairdocs.org/model/boeing-747-4b5/reports.md?page=2

## 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 = '7474B5'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/model/boeing-747-4b5/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.