# SDR AALA991781

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 19, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N722AA](https://openairdocs.org/aircraft/N722AA), registered now
- Make and model: Boeing 727227
- Aircraft serial: 20730
- System (JASC): [5330 · Fuselage Main, Plate/Skin](https://openairdocs.org/jasc/5330)
- Part: Skin
- Condition: Corroded
- Location: Bs 572-580
- 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/AALA991781

## Discrepancy

TUL - CORROSION ON BILGE SIDE OF SKIN OUTBOARD OF STR 28L STA 572 - STA 580.  INSTALLED EXTERNAL DOUBLER PER SRO 53-30-3.  TST:  72,812.33 HOURS.  CYCLES:  47,830.  (X)

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