# SDR AALA20160225016

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 25, 2016
- Submitted: February 26, 2016
- Operation: Air carrier
- Aircraft: N691AA
- Make and model: Boeing 757223
- Aircraft serial: 25697
- Aircraft time: 80,179 hours, 22,070 cycles
- System (JASC): [5314 · Fuselage Main, Keel](https://openairdocs.org/jasc/5314)
- Part: Keelbeam
- Part number: 144N80493
- Condition: Corroded
- Location: Fuselage
- 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/AALA20160225016

## Discrepancy

RIGHT WW CORROSION ON KEEL BEAM CTR WEB AROUND A HYD LINE FITTING AT STATION 1176, APPROX 28 INCHES ABOVE THE LOWER HORIZONTAL OF THE KEEL BEAM.  DAMAGE WAS REMOVED BY BLENDING.  THE BLENDED WEB WAS MAPPED ON A .5" GRID & HFEC SURFACE SCANNED & DIGITAL THICKNESS DONE.  FASTENER HOLES COMMON TO THE REPAIR WERE HFEC INSPECTED.  A DOUBLER WAS FABRICATED & INSTALLED.  ALL WORK PERFORMED IAW EA 258086.  ACFT IN BASE MX.

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