Service difficulty report · Stringer · Boeing 737400

Difficulty date
April 15, 2016
Submitted
May 10, 2016
Operation
General aviation
Aircraft
N304AS
Make and model
Boeing 737400
Aircraft serial
25430
Part
Stringer
Condition
Cracked
Location
Bs 1016
Part time
58,642 hours
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

DURING INSPECTION, FOUND CRACK ON STR S4L, FWD OF BS 1016. REMOVED INSULATION AND INTERCOSTAL TO GAIN ACCESS TO STRINGER. CUTOUT DAMAGED SECTION OF STR 4L AND REMOVED ASSOCIATED FASTENERS IN FUSELAGE ALONG WITH RIVETS IN FRAME TIE IAW SRM 51-40-02, REV 91. REMOVED RIVET IN PRODUCTION SPLICE TIE AND SHEAR TIE ABOVE STRINGER 4L. RE4MOVED DOOR FRAME T-ANGLE AT BS 985L IAW SRM 51-40-02, REV 91. FABRICATED-3 SPLICE ANGLE, 2 STR SPLICE AND NEW S4L SPLICE ALL IAW WITH DER SERVICES DRAWING 16025-1, REV 1R. PERFORMED HFEC ON BEND RADIUS-3 SPLICE ANGLE IAW NDTM 51-00-00, PART 6, PROCEDURE 23, REV 118. PERFORMED HFEC ON BEND RADIUS ON FABRICATED, -2 STR SPLICE IAW NDTM 51-00-00, REV 91. INSTALLED REPAIR PARTS IAW DER SERVICE DWG 16025-1 SRM 51-40-02.

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