# SDR 9627736613

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 21, 1996
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N613US
- Make and model: Boeing 747251B
- Aircraft serial: 20358
- System (JASC): [5412 · Nacelle/Pylon, Bulkhead/Firewall](https://openairdocs.org/jasc/5412)
- Part: Bulkhead Chord
- Condition: Cracked
- Location: Aft Bulkhead
- Stage of operation: IN
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/9627736613

## Discrepancy

DURING CHECK, FOUND NR 4 STRUT AFT BULKHEAD VERTICAL T-CHORD CRACKED VERTICALLY TWO INCHES FROM TOP RIGHT SIDE.  REPLACED VERTICAL T-CHORD PER EA 66-120269 AND EA 66-120281.

---
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.