# SDR SWAA2022022163355

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 22, 2022
- Submitted: February 21, 2022
- Operation: Air carrier
- Aircraft: N7840A
- Make and model: Boeing 737*
- Aircraft serial: 30236
- Aircraft time: 60,283 hours, 37,501 cycles
- System (JASC): [5720 · Wing Miscellaneous Structure](https://openairdocs.org/jasc/5720)
- Part: Strap
- Condition: Corroded
- Location: L/H Wing
- Stage of operation: UK
- 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/SWAA2022022163355

## Discrepancy

LEFT WING FWD BOOST PUMB HOUSING CORRODED AT UPPPER BONDING STRAP / [01] OPENED AND COLLARED THE NO. 1 FWD BOOST PUMP CIRCUIT BREAKER PER AMM 28-22-41-000-801 STEP 2H(4(B)) AND GAINED ACCESS TO CORROSION PER AMM 28-22-41-000-801 STEPS 4H(5; 8(UPPER STRAP ONLY);[26] REPAIRED LEFT WING CORROSION AT LEFT WING FWD BOOST PUMP HOUSING UPPER BONDING STRAP IAW SWA EA NO. 22-157-00304 REV A;

---
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.