# SDR CALA2021040100404

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 30, 2021
- Submitted: April 1, 2021
- Operation: Air carrier
- Aircraft: [N77295](https://openairdocs.org/aircraft/N77295), registered now
- Make and model: Boeing 737824
- Aircraft serial: 34001
- Aircraft time: 47,098 hours, 16,632 cycles
- System (JASC): [5312 · Fuselage Main, Bulkhead](https://openairdocs.org/jasc/5312)
- Part: Bulkhead Web
- Part number: 111A1111
- Condition: Cracked
- Location: Bs 663
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2021040100404

## Discrepancy

L/H VERTICAL PRESSURE DECK CRACKED @ STA 663, LBL35. REPAIRED VERTICAL PRESSURE WEB PER SRM 57-10-10 REP 3.  SEE FLEET CYCLE LOG PAGE 9767269 FOR ALL WORK ACCOMPLISHED.  ISSUE DIP PER S TEP 7 INSPECTION REQUIREMENTS REF 57-10-10 REP 3 TABLE 205. INSP.THRESHOLD 56K CYCLES AFTER REPAIR INST.HFEC 36K FLT CYCLES- INITIAL WEB AND PT 1 REPAIR WEB FROM THE AFT SIDE (ARROW 1),PART 3 FILLER NOT COMMON TO THE PART 2 DOUBLER FROM THE FWD SIDE R COMPRESSION CHORD FROM THE AFT OR FWD SIDE(ARROW 5) LANGE OF THE LOWER ATTACH ANGLE FROM THE FWD SIDE (ARROW 6),UPPER (ARROW 2),PART 2 DOUBLER FROM THE FWD SIDE (ARROW 4),HORIZONTAL F 737NDT PART 6,51-00-00 PROCEDURE 4 OR 737 NDT PART 6 51-00- 00,PROCEDURE 23,UPPER COMPRESSION CORD REF 737NDT PART 6,51-00-0 0 PROCEDURE.LFEC 36K FLT CYCLES-PART 3 FILLER COMMON TO THE PART 2 DOUBLER FROM FWD SIDE (ARROW 3) REF 737 NDT PART 6,51-00-26.

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