# SDR AALA202110267962

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 6, 2021
- Submitted: October 27, 2021
- Operation: Air carrier
- Aircraft: [N791AN](https://openairdocs.org/aircraft/N791AN), registered now
- Make and model: Boeing 777223
- Aircraft serial: 30254
- Aircraft time: 80,585 hours, 10,479 cycles
- System (JASC): [5330 · Fuselage Main, Plate/Skin](https://openairdocs.org/jasc/5330)
- Part: Skin
- Condition: Corroded
- Location: Zone 100 - Fuse
- 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/AALA202110267962

## Discrepancy

AIRCRAFT IN BASE MAINTENANCE: CORROSION OF FUSELAGE SKIN NEAR LAVATORY TANK VENT TUBE AT STA 1969 BETWEEN STR 35L AND STR 36L, MEASURING L=5.0 IN, W=4.5 IN, D=0.12 IN. ACCOMPLISHED PERMANENT REINFORCING DOUBLER REPAIR IAW SRM 53-70-01-2R-1.

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