SDR USAA991350

Service difficulty report · Frame · Boeing 737401

Difficulty date
December 15, 1999
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N423US
Make and model
Boeing 737401
Aircraft serial
23990
Part
Frame
Condition
Cracked
Location
Bs 480
Part time
30,932 hours
Stage of operation
IN
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

CLT - DURING Q-4 CHECK VISUAL INSPECTION, FOUND TWO .5 INCH CRACKS BETWEEN STRINGER 8L AND 9L FRAME 480 INBOARD RIVET.. INSTALLED DOUBLER PER TR 53-10-14. (M)