# SDR ASAA2021073135689

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 31, 2021
- Submitted: August 17, 2021
- Operation: Air carrier
- Aircraft: [N528AS](https://openairdocs.org/aircraft/N528AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35695
- Aircraft time: 38,507 hours, 13,530 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Web
- Part number: 147A5712U35
- Condition: Corroded
- Location: Bs 986-992
- 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/ASAA2021073135689

## Discrepancy

FLOOR WEB PLATE HAS CORROSION SPOTS BETWEEN STA 986 THRU STA 992 AND RBL 33 THRU RBL 44, IN THE AFT CABIN. GROUNDED - YES. LOCATED AND DRILLED REPLACEMENT WEB IAW 737-800 SRM 51-40-05-0G-0. CORROISON REMOVAL WAS 100% MATL LOSS AND IS OUT OF LIMITS IAW 737-800 SRM 53-70-51-1A-1. PART WAS REMOVED ON MIG5 OK273681. NEW WEB WAS LOCATED AND DRILLED ON WORK BENCH IAW 737-800 SRM 51-40-05-0G-0 NEW PART TO BE INSTALLED ON MIG5 OK273681 AAR W/O 1019442 2000-0109W=2" O=.040 R=0 L=2" D=.040.

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