Service difficulty report · Hsi · Boeing 7673CB

Difficulty date
May 20, 2010
Submitted
May 21, 2010
Operation
Air carrier
Aircraft
N592HA
Make and model
Boeing 7673CB
Aircraft serial
33468
Aircraft time
27,398 hours, 5,253 cycles
Engine
Pwa PW4060
Part
Hsi
Part number
6227999003
Part serial
L6HN
Condition
Distorted
Location
Captain'S
Part time
27,398 hours, 5,253 cycles
Stage of operation
NR
How discovered
9
Nature of condition
O
Precautionary procedure
O

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

What was found

ETOPS SIGNIFICANT SYS - CAPT'S HSI COMPASS CIRCUMFERENCE - SCALLOPED NRS AND LETTERS DISTORTED. SEL ALT EFI - NO CHANGE. REPLACED CAPT'S HSI. OPS CHECK OK IAW MM 34-22-04 PERFORMED MCDP TEST 30 OPS CHECK OK IAW FIM 22-00-03 LMP STATUS REMAINS IN "LAND 3" MODE.

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