Service difficulty report · Frame · Boeing 7572Q8

Difficulty date
November 18, 2015
Submitted
November 23, 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
Gouged
Location
Bs 1280
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

FUSELAGE BS 1280 STR 11R-14R, FRAME GOUGED IN 2 PLACES. BLENDED 2 EA GOUGES ON FRAME BS 1280/STR 11R-14R IAW SRM 53-00-07, FIG 101, DETAIL II. MECHANICAL MEASUREMENTS OF BLENDED AREAS, AT FRAME BS 1280, STR 14R, NR 1: L=1.55" X W=0.4" X D=.023"; BELOW STR 11R, NR 2: L=1.0" X W=0.25" X D=.005", DEPTH GAUGE 08-746, CAL DUE: 01-22-16. ORIGINAL THICKNESS .071" IAW SRM 53-60-07, FIG 1 AND DWG BAC 1517-2159. MATERIAL LOSS IS OUT OF LIMITS IAW SRM 53-00-07, ALLOWABLE DAMAGE 1, FIG 101. NO FASTENERS REMOVED AT REWORKED AREAS. NO CRACKS NOTED AT BLENDED AREAS IAW NDTM PT 6, 51-00-19. PERFORMED DVI, ENSURED NO FURTHER DAMAGE AT UNDERLYING STRUCTURE. APPLIED ALODINE AND 2 COATS BMS10.11, TYPE 1 PRIMER. COMPLIED WITH PRI 541033-14, REV 0, ER/A 541033-14, REV ORIG FOR PERMANENT REPAIR.

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