SDR S01252018

Service difficulty report · Shear Pin · Boeing 747209B

Difficulty date: May 22, 2001
Submitted: May 29, 2001
Operation: Air carrier
Make and model: Boeing 747209B
Aircraft serial: 24308
Aircraft time: 50,604 hours, 9,554 cycles
System (JASC): 5210 · Passenger/Crew Doors
Part: Shear Pin
Part number: MS20470B524
Condition: Sheared
Location: Main Deck Cargo
Stage of operation: CL
How discovered: L
Nature of condition: J
Precautionary procedure: O

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

What was found

B-18771 MAIN DECK CARGO DOOR WARNING LIGHT CAME ON DURING INITIAL CLIMB. C/A:1.AFTER L/D,FOUND MASTER LATCH EXT HANDLE SHEAR PIN SHEARED AND HANDLE NOT LOCK POSITION. 2.REPLACED SHEAR PIN PER 747 MM 52-32-06. 3.ADJUST MASTER LATCH LOCK MECHANISM PER 747 MM 52-32-00, AND CHECK DOOR OPEN/CLOSE FUNCTION NORMAL. 4.PFM CBN PRESSURIZATION WITH DP 5 PSI,CHECK NO AIR LEAKING AND MAIN DECK CARGO IND WAS NORMAL. 5.DO ONE-TIME INSPECTION PER EON 742-52-633753-012 FOR 747-200 FLEET.