# SDR SWAA2022010643901

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 16, 2021
- Submitted: January 6, 2022
- Operation: Air carrier
- Aircraft: N770SA
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 30589
- Aircraft time: 69,290 hours, 41,022 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Angle
- Condition: Corroded
- Location: Fuselage
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2022010643901

## Discrepancy

E&E COMPARTMENT LOWER AUXILIARY SILL; BETWEEN S-21L AND-23L AT STA 336 APPX. FOUND CORROSION ON ANGLE CHORD. ; / [01] REMOVED EXFOLIATED ANGLE E&E COMPARTMENT LOWER AUXILIARY SILL; BETWEEN S21L AND S23L AT STA 336 APPX. IAW SRM 51-40-02-0G-0.; [02] REMOVED ANGLE CHORD AT E&E COMPARTMENT LOWER AUXILIARY SILL; BETWEEN S21L AND S23L AT STA 336 APPX. FOUND OUT OF LIMITS IAW SRM 53-10-15-1A-1; 4.D.; [03] LOCATED AND DRILLED NEW ANGLE CHORD AT E&E COMPARTMENT LOWER AUXILIARY SILL; BETWEEN S21L AND S23L AT STA 336 APPX. PER B737-700 SRM 51-40-05-0G-0 AND DWG# 141A8240.

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