SDR IPXA10B61891

Service difficulty report · Frame · Boeing 7474R7F

Difficulty date: July 8, 2010
Submitted: August 16, 2010
Operation: Air carrier
Aircraft: N581UP
Make and model: Boeing 7474R7F
Aircraft serial: 25866
Aircraft time: 82,754 hours, 14,396 cycles
Engine: Ge CF680C2B1F
System (JASC): 5311 · Fuselage Main, Frame
Part: Frame
Condition: Cracked
Location: Bs 2598 Bulkhead
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

INSPECTION TYPE:C EMP- TAIL COMPT STA 2598 LT BHD INNER CHORD CRACK AT LWR TORSION BOX AREA AS MARKED. (CHORD CRACK LENGTH 0.915"), ( WEB CRACK LENGTH 0.030" ) CHORD & WEB REPAIRED IAW HX RS R53-80-36775, REV A AND EO 747- 5310-38966-A, ORG MAT'L:BAC1505-100859, 7075T6(INNER CHORD), CLAD 7075T6-0.050" BONDED WEB ASSY CHORD CUTOUT SIZE: 0.99" X 0.863", WEB FINAL HOLE SIZE: 0.309", THIS IS CLASSIFIED AS A MAJOR REPAIR THE REPAIR TIME LIMITED TO 17396 FLT CYC PENDING A (DTA).

More about the Boeing 747-4R7F