What was found
ETOPS SIGNIFICANT SYSTEM, EICAS MSG "C HYD SYS MAINT" DISPLAYED HYD PRESS NORMAL. REPLACED HYD GEN ADP CMD RELAY K865 & SYS 1 AIR/GROUND RELAY K1788 PERFORMED OPERATIONAL TEST PER M/M 29-11-00-715-896. OPS CKS NORMAL.
- Difficulty date
- July 5, 2007
- Submitted
- July 6, 2007
- Operation
- Air carrier
- Aircraft
- N580HA
- Make and model
- Boeing 76733A
- Aircraft serial
- 28140
- Aircraft time
- 20,340 hours, 3,967 cycles
- System (JASC)
- 2910 · Hydraulic System, Main
- Part
- Relay
- Condition
- Malfunctioned
- Location
- Hyd System
- Stage of operation
- NR
- How discovered
- O
- Nature of condition
- O
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.