Service difficulty report · Frame · Boeing 7572Q8

Difficulty date
December 2, 2015
Submitted
December 3, 2015
Operation
Air carrier
Aircraft
N434BC
Make and model
Boeing 7572Q8
Aircraft serial
33961
Aircraft time
29,224 hours, 17,053 cycles
Part
Frame
Condition
Dented
Location
Bs 1520
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

AFT CARGO BS 1520 BETWEEN STR 25L-26L TOP OF FRAME HAS DENT, GOUGE. FRAME AT BS 1520 BETWEEN STR 25L AND 26L HAS 2 EACH DENTS ON TOP OF FRAME, LOWER DENT MEASURES .63"W X .95"L, UPPER DENT MEASURES .85" W X .95" L, BOTH DENTS ARE OUT OF LIMITS REF SRM 53-00-07 PG 101, ALLOWABLE DAMAGE 1, FIG 101. PERFORMED REPAIR TO FRAME AT BS 1520, STR 25L TO 26L REF SRM 53- 00-07, REPAIR 5, DETAIL 2 AND SRM 51-40-02. 2 EA TRIMOUT ON FRAME MEASURE: NR 1: 1.130"X 1.035"X 0.5"R, NR 2: 1.080"X 1.035" X 0.5 "R. REPAIR IS PERMANENT CAT "B", ZONE 1 WITH THRESHOLD INSPECTION TO START AT OR BEFORE 50000 F/C & REPEAT INSPECTION EVERY 12000 F/C THEREAFTER USING HFEC & DETAILED INSPECTION. ACFT IS CURRENTLY AT 17053, F/C REF SRM 53-00-07, REPAIR 5, FIG 201, TABLE II, PAGE 210. INSTALLED ID TAG IAW PS 900-5-1, NR 04.

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