SDR UPS01437324

Service difficulty report · Frame · Boeing 747200

Difficulty date: November 1, 2001
Submitted: November 21, 2001
Operation: Air carrier
Aircraft: N521UP
Make and model: Boeing 747200
Aircraft serial: 21944
Aircraft time: 66,302 hours, 16,182 cycles
System (JASC): 5410 · Nacelle/Pylon, Main Frame
Part: Frame
Condition: Cracked
Location: #4 Pylon
Stage of operation: IN
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 #4 PYLON NAC STA 221 FRAME SEVERAL LOOSE AND SHEARED FASTENERS ON LHS 1/2" CRACK EMINATING FROM FASTENER HOLE. THE PYLON STA 221 FRAME WAS REPAIRED AS PER HX RS-53-34698 / UPS-HKG -01-00114H CONTINUE INSP REQUIRE PER SB 747-54A2202 AT 18 MONTH OR 1200 CYCLES WHATEVER EAILER REF UPS REPAIR/ALTERATION AUTHORIZATION, ENGINEERING FILE NO.747-54-20007 THE PNEU. DUCTING & THE ANTI-ICING VALVE REINSTALLED AIR LEAK CHK & OPN CHK C/OUT MM 36-11-01,30-21-03.

More about the Boeing 747-200