# SDR CALA2021042200512

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 20, 2021
- Submitted: April 22, 2021
- Operation: Air carrier
- Aircraft: [N57868](https://openairdocs.org/aircraft/N57868), registered now
- Make and model: Boeing 757-33N
- Registry model: [Boeing 757-33N](https://openairdocs.org/model/boeing-757-33n) (OpenAirDocs)
- Aircraft serial: 32590
- Aircraft time: 57,049 hours, 17,420 cycles
- System (JASC): [5347 · Fuselage, Seat/Cargo Attach Fittings](https://openairdocs.org/jasc/5347)
- Part: Seat Track
- Part number: BACS1520792
- Condition: Corroded
- Location: Cabin
- 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/CALA2021042200512

## Discrepancy

B757-53-3-0480: I/B SEAT TRACK HAS EVIDENCE OF CORROSION BTWN BS 1300 AND 1320 ON RBL24.  REF HAECO GSO NR 9282683 BLENDED CORROSION PER B757 SRM 53-00-52 AND FOUND TO BE OUT OF L IMITS. REMOVED SEAT TRACK IAW B757 SRM 53-00-52 R1. MACHINED 1EA REPAIR SEAT TRACK SECTION IAW B757 SRM 53-00-52. LOCATED AND DR ILLED SEAT TRACK, 2 REPAIR ANGLES AND REPAIR STRAP IAW B757 SRM 53-00-52 REPAIR 1 AND BAC DWG 146N5133 REV B. INSTALLED NEW SEAT 9. CATEGORY A REPAIR.  REF HAECO GSO MECH V912642/INSP QC302/V90187 FLOORPANELS  THAT WERE REMOVED 251DF, 252AF IAW ECRA 5100-01844. FIG 201 SHT 3 DETAIL I AND BAC DWG 146N5133 REV B. REINSTALLED TRACK SECTION AND ATTACHING PARTS IAW B757 SRM 53-00-52 REPAIR 1

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