SDR ASAA1058182

Service difficulty report · Unknown · Boeing 737890

Difficulty date: August 12, 2010
Submitted: August 16, 2010
Operation: Air carrier
Aircraft: N557AS
Make and model: Boeing 737890
Aircraft serial: 35176
Aircraft time: 15,869 hours, 4,645 cycles
System (JASC): 3460 · Flight Management Computing Hardware System
Part: Unknown
Condition: Malfunctioned
Location: Cockpit
Stage of operation: CL
How discovered: O
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

SELECTED VNAV AT 3400FT AND VNAN COMMANDED SPEED OF 209 KTS CLIMB PAGE INDICATIONS: ACT 209 CLB ON TOP LINE <ALL ENG 4L ENG OUT> ON 5R. NO MAX RATE & NO MAX ANGLE INDICATED. PROG PAGE HAD FUEL & ETA TO DESTINATION LEGS PAGE HAD NO SPEED & ALTITUDES. REACHING CRUISE ALL FMC INDICATIONS BECAME NORMAL. UNABLE TO DUPLICATE WRITE UP. FMCS DID NOT LOG ANY RELATIVE FAULTS. REF M/M 34 61 00 TASK 730 801. DFCS SYSTEM OPS CHECK GOOD. REF M/M 22 11 00 740 801.