Service difficulty report · Indication Sys · Boeing 777224

Difficulty date
May 30, 2010
Submitted
June 1, 2010
Operation
Air carrier
Aircraft
N78009
Make and model
Boeing 777224
Aircraft serial
29479
Aircraft time
55,804 hours, 5,829 cycles
Engine
Ge GE9090B
Part
Indication Sys
Condition
Malfunctioned
Location
O2 System
Stage of operation
CL
How discovered
O
Nature of condition
N
Precautionary procedure
J, A

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

What was found

CLIMBING THRU 16.000 RECEIVED A CLEAR O2 LOW EICAS MSG. PRESSURE READ 50 PSI BUT 1400 PSI DURING PRE FLIGHT. PLACED INDICATION ON DEFERRAL INOP CONFIRMED BOTTLE NR 1 AT 1700 PSI, BOTTLE NR 2 AT 1700 PSI, OK TO CONTINUE.