SDR UPS99428645

Service difficulty report · Brakes · Boeing 747212B

Difficulty date: February 4, 1999
Submitted: March 26, 2000
Operation: Air carrier
Aircraft: N520UP
Make and model: Boeing 747212B
Aircraft serial: 21943
System (JASC): 3240 · Landing Gear Brake System
Part: Brakes
Condition: Out Of Adjust
Location: Landing Gear
Stage of operation: TX
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-N/A, MAIN A/C BRAKES VERY WEAK FROM BOTH CAPTS AND F/O'S POSITION. NORMAL BRAKE SOURCE SELECT SW, NO HELP. BRAKE PEDALS, CAPT AND F/O BOTTOM OUT WHEN TRYING TO STOP. ALL HYD SYS PRESSURES NORMAL. INSPECTED MAIN BRAKE SYS, FOUND CABLES TENSION ON LOW, ADJ CABLE SYS PER 32-41-00 PG 501, BRAKES OPS CHKS OK.

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