SDR UIEA99086

Service difficulty report · Stringer · Boeing 7472D7B

Difficulty date: September 29, 1999
Submitted: March 26, 2000
Operation: Air carrier
Aircraft: N526MC
Make and model: Boeing 7472D7B
Aircraft serial: 22337
System (JASC): 5313 · Fuselage Main, Longeron/Stringer
Part: Stringer
Condition: Misdrilled
Location: Bs 1480
Part time: 72,098 hours
Stage of operation: IN
Nature of condition: W
Precautionary procedure: K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

DURING ACCOMPLISHMENT OF SB 747-53A2390 FIG 19, DETAIL L, OVERSIZING HOLES AT STRINGER 39 LEFT AND RIGHT SIDES FROM .25 INCH BY .375 INCH WOULD CAUSE UNACCEPATABLE EDGE DISTANCE. PER TELEX TLS-AMS-99-00033H, PERFORMED HFEC OPEN HOLE INSPECTION, OVERSIZED HOLE BY .0625 INCH AND INSTALLED BOLT BACB30NX10K BOLT. (M)

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