MH60T Trivia #326-350

This trivia series distills over 20 years of flight manual study into 500+ focused questions and answers, posted in 25 question sets. It’s not a substitute for the manual, but rather an aid to facilitate study and strengthen airmanship. During your review, ask yourself: How is this operationally relevant? Do I need to memorize it, or just be familiar with it? Should I review more on this topic? 

326. Q: Without AC power, what are your firefighting capabilities? 
A: Extinguisher is available for the APU and the No. 1 engine using reserve. There is no capability to extinguish a fire in the No. 2 engine without the No. 2 DC Primary Bus online. 

327. Q: At what impact force will the fire extinguishers discharge automatically? 
A: At 10g’s the bottles will discharge into the No. 1 and No. 2 engine compartments. 

328. Q: Thermal relief of fire bottles is indicated by what? 
A: Loss of the red, plastic frangible disk on the left side of helicopter. 

329. Q: Which direction do you need to push to jettison the windows on the cockpit and cabin doors? 
A: Forward. 

330. Q: The engine out lights are triggered by what? 
A: Ng below 55%, weight off wheels. 

331. Q: What sections does the ECS heat/cool? 
A: Cabin, cockpit, nose bay and transition section (it isn’t necessarily for crew comfort; it is for our avionics). 

332. Q: Regardless of the position of the air source switch, ECS automatically shuts down when? 
A: Contingency power selected (not EDECU auto contingency power). When starting an engine. 

333. Q: With air source in engine, ECS will also shut down if? 
A: Either engine anti-ice switch is on, de-ice is in auto and ice is detected. Underpressure is sensed. TGT over 851°C. 

334. Q: ECS shut down advisory will come on except for what shut down conditions? 
A: Engine start and underpressure. 

335. Q: With de-ice master in auto, what happens when ice is detected? 
A: Ice detected caution illuminates. Ice detector heater is turned on to remove the ice and reset for another cycle. Wind shield anti-ice is turned on. Engine anti-ice is turned on. Blade de-ice is turned on (all regardless of switch position). 

336. Q: Steady illumination (10 seconds or more) of the POWER MAIN or TAIL monitor lights during operation or test mode requires that? 
A: The blade de−ice system be deactivated. 

337. Q: Temperature limitations for the blade de-ice test? 
A: 38°C or higher do not do the blade de-ice check. 22-38°C only do the test after 100% Nr for 5 mins. 10-20°C do the test at 100% Nr. Below 10°C you can do the test with static blades. 

338. Q: Stabilator check? 
A: 34-42° down, caution light off. Press test: 5-12° movement caution light end tone. Turn auto on: 34-42°, light out, tone off, check visually. Manual slew up: 4-8 seconds, 6-10° up, light and tone, check visually. Slew to 0: check position visually. Auto on: 34-42° down, check visually. 

339. Q: What are the restrictions on flight with inoperative fuel boost pumps? 
A: Authorized for JP-5, JP-8 and Jet A. Operations with no boost pumps using JP-4 and Jet B are subject to the following considerations/restrictions: JP-4 and Jet B at a high altitude or high temp may induce vapor bubbles. Avoid nose low, low power combinations. With JP-4 and Jet B, hover for 30 seconds prior to forward flight. 

340. Q: Without boost pumps and with JP-4/Jet B, what altitude and temp combinations may cause flameout? 
A: 0-2000’ PA greater than 35°C. 2000-10000’ PA greater than 30°C. 10000’ PA and above greater than 15°C. 

341. Q: Bucket airspeed? 
A: 65  KIAS (15.5k GW) -78 KIAS (23k GW) standard day at sea level. 

342. Q: If the APU shuts down automatically, what should not be done? 
A: Don’t cycle the battery or APU control switch or you will lose the bite codes. 

343. Q: On shut down, how high can the collective be raised to prevent droop stop pounding? 
A: 1.5” 

344. Q: If droop stops do not come in after the No. 2 engine is secured, what are the actions? 
A: Advance the No. 1 PCL until Nr is greater than 75%. Displace the cyclic slightly. If icing may be the cause, turn on blade de-ice to heat droop stops (turn on one of the main generators- two generator must be operating to power blade de-ice).

345. Q: Weight on wheels prevents what with the helicopter on the ground? 
A: Fuel tank jettison. Fuel dump. Rescue Hoist shear. Cargo Hook emergency release. Pitch (attitude) hold. Heading hold. Weather radar from transmitting. Engine out lights. Low rotor lights. LDI from operating the back up pump in off or auto. 

346. Q: Weight on wheels prevents what while airborne? 
A: Hydraulic leak test. GCU underfrequency protection. Some test functions in CAAS. 

347. Q: Switching to EMER on the GRD/EMERG switch on the MSN SYS panel causes? 
A: Both the V1 and V2 radios to switch to 243.0 and the transponder to squawk 7700. 

348. Q: When using external pneumatic air for start (no APU) how does the availability of AC power affect the start (buddy start or normal start)? 
A: If no AC power, use buddy start checklist, with an AC power cart, use a normal start checklist. 

349. Q: What should a SPREAD INCOMP caution represent? 
A: Pylon and/or stabilator panel not spread and locked and/or indexer not retracted and/or AC power routed to the slip rings. 

350. Q: #1/2 FUEL PRESS? 
A: Low fuel pressure from engine driven boost pump or a leak in the fuel line.