# SDR ASAA2016022415813

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 24, 2016
- Submitted: March 9, 2016
- Operation: Air carrier
- Aircraft: [N546AS](https://openairdocs.org/aircraft/N546AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 30022
- Aircraft time: 42,177 hours, 13,705 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Web
- Part number: 147A880185
- Condition: Corroded
- Location: Bs 988-992
- 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/ASAA2016022415813

## Discrepancy

L2 DOOR SURROUND LOWER AUXILIARY SILL WEB IS CORRODED AT APPROXIMATELY BS 990, AT GROUND BLOCK LOCATION.  ACFT GROUNDED. REMOVED CORROSION AND FOUND BEYOND ALLOWABLE LIMITS IAW SRM 53-70-15-1A-1, ORIGINAL MATERIAL THICKNESS IS 0.040", REMOVED 
0.006 ",  REMAINING THICKNESS IS 0.034".  REMOVED DAMAGE WEB IAW SRM 51-40-02.  FABRICATED NEW WEB IAW BAC DWG 147A8801, REV, INSTALLED NEW WEB IAW SRM 51-40-02 AND DWG 147A8801 REV AND SRM 51-10-02, PARA 9.

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