Service difficulty report · Frame · Boeing 737490

Difficulty date
March 27, 2016
Submitted
April 29, 2016
Operation
Air carrier
Aircraft
N709AS
Make and model
Boeing 737490
Aircraft serial
28896
Aircraft time
47,649 hours, 31,217 cycles
Part
Frame
Part number
6545815354
Condition
Cracked
Location
Bs 344
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

FRAME AT BS 344 HAS A CRACK INDICATION AT BS 4 RT LOWER FWD HOLE AT SPLICE. ACFT GROUNDED. REPAIRED DAMAGE TO FRAME IAW EA 400-53EA-17039. THIS REPAIR HAS A REINSPECT THRESHOLD OF 8,000 FLT. CYCLES AFTER MODIFICATION WITH A REPAIR INTERVAL OF 8,000 FLT. CYCLES. PERFORM THE INSPECTIONS SPECIFIED BY UJ-2 AT THE LAST 4 FASTENERS COMMON TO THE PD37-53-2526-1, REPAIR ANGLE AND THE FRAME WEB, LOCATE APPROXIMATELY AT BS 5.5R, FIG 4. ADDITIONALLY, PERFORM THE INSPECTION SPECIFIED BY UJ-2 AT THE LAST 2 FASTENERS COMMON TO THE PD37-53-2526-1. REPAIR ANGLE AND THE FRAME FLANGE LOCATED APPROXIMATELY AT STR 5.5R, FIG 4 OF EA 400-53EA-17039.