SDR UIEA2019083005358

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 1140-1200
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

M/D STA 1140 - 1200, LBL 33, SEAT TRACK FLANGE FOUND CORRODED.(<P>M/D STA 1140 - 1200, LBL 33, SEAT TRACK I/B FLANGE CORROSION REMOVED AND RE-PROTECTED AS PER SRM 51-10-02 AND SRM 51-20-01. BLEND OUT DEPTH 0.004", ORG 0.063", WIDTH 0.6", LENGTH 4" WITHIN SRM 53-00-52 ALLOWABLE DAMAGE FIG 101 LIMIT.