SDR 05FDEA03072

Service difficulty report · Computer · Doug DC1030F

Difficulty date: September 23, 2005
Submitted: September 27, 2005
Operation: Air carrier
Aircraft: N313FE
Make and model: Doug DC1030F
Aircraft serial: 48311
Aircraft time: 44,247 hours, 13,607 cycles
System (JASC): 3441 · Inertial Guidance System
Part: Computer
Condition: Malfunctioned
Location: Roll Axis
Stage of operation: CR
How discovered: O
Nature of condition: G
Precautionary procedure: O

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

What was found

PDIS - WHILE IN CRUISE FLIGHT AT FL330, LOST NR 1 INU WITH LOSS OF ADI AND HSI, WENT TO ATT REF POS, NO HELP AND THEN WENT TO OFF AND THEN TO ATT REF POS AND GOT ADI AND HSI BACK. DIVERTED TO ATL. REMOVED AND REPLACED NR 2 ROLL AXIS COMPUTER AND NR 1 INU, LOADED DATA BASE.

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