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Definition
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Term
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Definition
Flight compartment supply duct exceeds 88' C
Normal operation interrupted and full cool air is routed through ducts until 82' C |
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Term
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Definition
Cabin supply duct exceeds 88' C
Normal operation interrupted and full cool air is routed through ducts until 82' C |
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Term
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Definition
| ACM compressor discharge temp exceeds 207' C |
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Term
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Definition
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Term
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Definition
| L 26 V fixed freq transformer inop |
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Term
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Definition
| Left AC variable freq bus not powered |
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Term
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Definition
Dc bus fault detected
Bbpu inhibits buses from tying, after 7 sec removes affected batt and faulty main |
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Definition
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Definition
| Main batt isolated from main bus |
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Term
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Definition
Dc gen offline or failed
Attempt reset |
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Term
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Definition
| No 2 AC gen failed or offline |
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Term
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Definition
Main battery temp exceeds 65' C
Confirm overheat. Select off |
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Term
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Definition
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Term
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Definition
No 1 dc gen windings overheating
Shut down gen
Light extinguishes when it cools |
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Term
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Definition
No 1 AC gen windings hot
Shut down AC gen
Light extinguishes when gen cools |
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Term
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Definition
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Term
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Definition
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Term
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Definition
Engine fire detected or detector loop circuit malfunction
Check for fire
If no fire and FAULT light is illuminated select appropriate loop arming selector to remaining loop |
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Term
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Definition
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Term
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Definition
No 1 or No 2 rudder actuator pressure fails to decrease when aircraft exceeds 140kts
Reduce to 200kts or below |
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Term
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Definition
| Inboard roll spoiler left dump valve failed |
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Term
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Definition
Inboard roll spoiler lift dump valve failed
In flight it will remain in flight mode and deploy normally at TD
Illumination at TD one inboard lift valve failed to deploy spoiler in ground mode. They stay in flight mode |
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Term
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Definition
No. 1 rudder actuator depressurized (pressure decreasing below 600psi)
No.2 rudder actuator operates at 3000psi and RUD FULL PRESS light illuminates |
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Term
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Definition
Either rudder actuator has depressurized causing 3000psi to be applied to remaining actuator
RUD PRESS light of remaining actuator illuminates is exceed 140kts |
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Term
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Definition
Ground spoiler lift valve failed
If occurs in flight or in taxi modes on ground, one valve failed open. Ground spoilers operate normally. If occurs at touchdown one valve failed to open. Ground spoilers will not deploy |
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Term
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Definition
Main flap drive failure
Secondary shaft operates flaps. Operate normally for remainder of flight |
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Term
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Definition
Loss of hyd pressure in flap power unit during flap extension or retraction
Check No. 1 MAIN and STANDBYE hyd pressure and quantity indicators
Unless hyd power to flap drive restored, flaps are immobilized at existing position |
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Term
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Definition
| Lift transducer or lift computer failed or de-energized |
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Term
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Definition
No.1 engine boost ejector pump failed (output pressure below 5.5psi)
Tank 1 aux pump on
Light goes out as pressure increases to 7.5psi |
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Term
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Definition
| #1 fuel quantity less than 130# |
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Term
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Definition
Refuel or refueling selection made at control panel
Transfer cannot occur with light on |
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Term
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Definition
| Fuel filter restricted or blocked |
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Term
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Definition
#1 hyd system exceeds 109' C
in flight could indicate failed pressure regulator. On ground with high ambient temp operated stuff on No.1 hyd system to circulate
Goes out at 95' C |
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Term
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Definition
#2 hyd system exceeds 109' C
in flight could indicate failed pressure regulator. On ground with high ambient temp operated stuff on No.2 hyd system to circulate
Goes out at 95' C |
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Term
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Definition
No 1 standby hydraulic pump electric motor temp exceeds 170' C
If conditions occur when main hyd system is inop, select No.1 stby hyd pump to NORM if flight conditions permit loss of #1 hyd services. Avoid selecting flaps
Light goes out at 160' C |
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Term
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Definition
No.1 engine driven hydraulic pump failed (pressure below 2000 psi)
Select STBY HYD PRESS 1 to on
Caution light remains on and stby hyd pump pressure will be displayed on No.1 Standby and Main hyd pressure indicators |
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Term
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Definition
| Pitot heat selected off with dc system energized |
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Term
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Definition
| Elevator horn failure. Flashes momentarily when heaters are first selected |
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Term
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Definition
Left windshield overheated
Select to warm-up |
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Term
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Definition
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Term
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Definition
Airframe pressure insufficient for boot operation (below 5.5psi)
Airframe auto selector -off. Select BOOT air to ISO. Manually select boots |
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Term
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Definition
Nose wheel steering Ecu malfunction/offline
Or exceed steering limit |
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Term
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Definition
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Term
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Definition
Outboard or inboard anti-skid control unit failed
Anti-skid control reduced by 50% |
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Term
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Definition
Landing gear door sequence valve relay failed with aircraft airborne and gear up
Don't attempt to lower gear normally. Use alt gear extension |
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Term
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Definition
Fault in a weight on wheels sensing circuit within PSEU
Gear might not retract |
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Term
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Definition
Emergency lights not armed with dc electrical system energized
Select emergency lights to arm |
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Term
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Definition
| #1 Bleed air supply duct exceeds 287' C |
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Term
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Definition
| #1 oil pressure below 42 /- 3 psi |
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Term
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Definition
| #1 engine ecu failed or deactivated by manual selection of switchlight |
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Definition
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Term
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Definition
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Term
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Definition
| Inadequate system pressure due to fluid loss, the iso valve closes and #1 HYD ISO VLV light illuminates. Isolates the rudder actuator from all other HYD systems to maintain HYD pressure to the rudder |
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