# SDR DL72S971686

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 20, 1997
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N520DA](https://openairdocs.org/aircraft/N520DA), registered now
- Make and model: Boeing 727232
- Aircraft serial: 21471
- System (JASC): [5312 · Fuselage Main, Bulkhead](https://openairdocs.org/jasc/5312)
- Part: Blkhd Stiffener
- Part number: 6516350
- Condition: Cracked
- Location: Bs 1183
- 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/DL72S971686

## Discrepancy

A CRACK WAS FOUND IN THE VERTICAL STIFFENERS AT BOTH RBL AND LBL 36.83 ON THE FORWARD SIDE OF THE 1183 BULKHEAD.  THE CRACKS ARE APPROXIMATELY .5 LONG AND ARE LOCATED AT WL 240.  THE BEAM WILL BE REPAIRED PER RELEVANT OPERATIONS OF EO 4-59821-3.

---
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.