# SDR B4MR98004

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 1, 1998
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N521DB](https://openairdocs.org/aircraft/N521DB), registered now
- Make and model: Boeing 727243
- Aircraft serial: 21266
- System (JASC): [5330 · Fuselage Main, Plate/Skin](https://openairdocs.org/jasc/5330)
- Part: Skin
- Condition: Corroded
- Location: Bs 950-970
- 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/B4MR98004

## Discrepancy

DURING ACCOMPLISHMENT OF AD 92-12-03, FOUND CORROSION ON SKIN UNDER WEB NEXT TO STR 27L STA 950 TO 970 IN C-2 PIT.  CORROSION FOUND TO BE OUT OF LIMITS IAW B727 SRM 53-30-1.  INSTALLED REPAIR DOUBLER AND FILLER IAW B727 SRM 53-30-3 FIG 3. NON-ROUTINE TASK CARD NUMBER 14835.

---
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.