SDR UIEA201908315372

Service difficulty report · Seat Track · Boeing 747422

Difficulty date: August 28, 2019
Submitted: September 1, 2019
Operation: Air carrier
Aircraft: N480MC
Make and model: Boeing 747422
Aircraft serial: 28812
Aircraft time: 75,274 hours, 8,388 cycles
System (JASC): 5347 · Fuselage, Seat/Cargo Attach Fittings
Part: Seat Track
Condition: Corroded
Location: Bs 1320-1440
Stage of operation: IN
How discovered: V
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

M/D - SEAT TRACK I/B FLANGE FOUND CORRODED AT STA 1320 TO 1440, LBL 99, STA 1320 - 1440, LBL 99, SEAT TRACK I/B FLANGE CORROSION REMOVED AND RE-PROTECTED AS PER SRM 51-10-02 AND SRM 51-20-01. BLEND OUT DEPTH 0.005", ORG 0.080", WIDTH 0.9", LENGTH 6" WITHIN SRM 53-00-52 ALLOWABLE DAMAGE 1 FIG 101 LIMIT.