SDR SWAA2021011133893

Service difficulty report · Seat Track · Boeing 73776Q

Difficulty date: December 2, 2020
Submitted: January 12, 2021
Operation: Air carrier
Aircraft: N550WN
Make and model: Boeing 73776Q
Aircraft serial: 30279
Aircraft time: 59,593 hours, 37,112 cycles
System (JASC): 5347 · Fuselage, Seat/Cargo Attach Fittings
Part: Seat Track
Part number: 143A5300
Condition: Corroded
Location: Zone 200
Stage of operation: IN
How discovered: 9
Nature of condition: O
Precautionary procedure: K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

CORROSION, MAIN CABIN SEAT TRACK LBL 24.75 CORRODED FROM BS 380 TO BS 370 MKD 126-028. REMOVED, REPLACED, AND INSTALLED MAIN CABIN SEAT TRACK (PO 1696448) AT LBL 24.75 FROM BS 380 TO BS 480, IAW B737-700 SRM 5140-02-00G-0 SRM 51-4005-0G-0 SRM 51-20-01-0G-0 SOPM 20-41*04;AND BOEING DWG DOC 143A5300. EVALUATION OF SEAT TRACK CORROSION WAS FOUND OUT OF LIMITS, IAW B737-700 SRM 53-00-52-1A-1 FIG 103 DETAIL A.

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