# SDR AALA20010158

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 23, 2001
- Submitted: February 20, 2001
- Operation: Air carrier
- Aircraft: [N722AA](https://openairdocs.org/aircraft/N722AA), registered now
- Make and model: Boeing 727227
- Aircraft serial: 20730
- System (JASC): [5730 · Wing, Plate/Skin](https://openairdocs.org/jasc/5730)
- Part: Skin
- Condition: Corroded
- Location: Wing
- 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/AALA20010158

## Discrepancy

TUL - FOUND LOWER WING SKIN ABOVE RIGHT PRIMARY HEAT EXCHANGER IS INFECTED WITH MODERATE TO HEAVY CORROSION LBL 32-RBL 32 STRINGER 3-5, STATION 805-820.  REMOVED CORROSION AND INSTALLED DOUBLER AND TRIPLER .080, 2024-T3 (TWO EACH) PER SRM 57-30-3.  (M)

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