SDR CA110815008

Service difficulty report · Pressure Switch · Boeing 7673Y0

Difficulty date: August 13, 2011
Submitted: January 23, 2013
Operation: Air carrier
Make and model: Boeing 7673Y0
Aircraft time: 76,926 hours
Engine: Pwa PW4060
System (JASC): 2931 · Hydraulic Pressure Indicator
Part: Pressure Switch
Part number: S00033
Condition: Failed
Location: Hyd System
Stage of operation: NR
How discovered: O
Nature of condition: J
Precautionary procedure: A

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

What was found

(CAN) HYD PROBLEM, AIR RETURN, EXPECTED LANDING WEIGHT 146000KGS CLIMB OUT AT FL 200 EICAS MESSAGE "C" HYD PRIM 1 ". C ELECT 1 PRESS LGT "ON"PUMP SWITCHED OFF IAW QRH. C-1 ELECT ACMP PRESS SWITCH S-00033. REPLACED IAW STD PRACTICE, SYS. OPS NORMAL & NO LEAKS.

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