Service difficulty report · Seat Track · Boeing 7377H4

Difficulty date
March 24, 2026
Submitted
April 7, 2026
Operation
Air carrier
Aircraft
N473WN
Make and model
Boeing 7377H4
Aircraft serial
33832
Aircraft time
71,468 hours, 42,748 cycles
Part
Seat Track
Condition
Damaged
Location
Zone 200
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

DURING DVI AT MAIN CABIN SEAT TRACK AREA, LBL 24.75 & BS 727B FOUND ELONGATED HOLE AT THE BOTTOM OF THE STRUCTURE. REAMED ELONGATED HOLE UP TO 0.312'. REMOVED AND REPLACED DAMAGE SEAT TRACK BS 727B - 887, LBL 25, WL 208, IAW EA 26-153-00796-WIP2, SEAT TRACK FASTENER REPLACEMENT. LOCATION B OF LBL 24.75, CCN TTG8Q01BBGPZ; SRM 51-10-02-0G-0; SRM 51-40-05-0G-0; SRM 51-40-02-0G-0 AND DWG 146A5300, REV A.

More about the Boeing 737-7H4