C-130 Technical
1,312 topics in this forum
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- 1 reply
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Need a little Jet troop help. I have an aux pump feather motor missing some sort of set screw. The set screw goes into the aft part of the motor at 2 o'clock position on the rear mounting ear. I am thinking that this may be an internal adjustment port from the manufacturing company. Any Suggestions to what this is would be greatly appreciated since Im flying with the darn thing.
Last reply by bischoffm, -
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The model is a C-130H. Its LH AUX Fuel Pump is rated 38psi(static-no demand). During flight and as long as crossfeed valves are opened this pressure drops. Finally with the AUX pump ON and four crossfeed valves open the output press is 20psi, causing the AUX tank empty light to illuminate. The three solenoids of the pump were measured and found ok. But, suspecting an internal mechanical failure of the pump, the pump was replaced. The discrepancy remained after the following flight. More careful inspection revealed a damaged pressure hose(the one connected on the pump). The damage was not so obvious, since it was in the internal part of the hose. Anyway, the hose was repl…
Last reply by moon, -
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I know this subject has been posted previously, but reply's were not available to access
Last reply by Steve1300, -
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I'm looking for an installation drawing to build up and old "pip" connnector style Aux Fuel Qty harness for a C-130E, 1963 model. The aircraft missed the tank modification for the terminal type connections and has an older style harness that is not in the JEDMIX that we can find. We are trying to prevent a couple days extra down-time to use the old harness as a template, so all we need is the lengths of the cables to build one up prior to going in tank. Any info would be appreciated!
Last reply by bischoffm, -
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Why hydraulic oil for auxiliary system more than utility and booster?
Last reply by saylahbrat, -
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Recently, we had an issue with the Aux hydraulic system while operating the cargo ramp. While manually operating the ramp in position 4, the the ramp would begin to lower uncommanded. The original thought was the return line check valve was bad. However, after canning one from another plane to trouble shoot, the same issue was occurring. During all other phases of manual operation, the ramp was operating perfectly, locking pressure was at about 650psi, unlocking was 720psi. Virtually everything was changed out and the problem was still occurring. We finally decided to open up the doghouse panel and found the ramp locking cylinder was bypassing, but only in manual…
Last reply by smoedog, -
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We have experience a few incident of LH Aux FQI went to off-scale LOW on two aircraft. When open tank and found the Fuel Qty Compensator cracked and dislodged. Subsequent check found the bladder cell actually collapse as the strings tie the cell to the structure have given way. Have anyone experience this. Can the Aux Tank pump pressure caused the problem when the tank is empty ie. the pump running.
Last reply by James Skelton, -
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I am electrical instructor At home of hercules please need help from Electrical/Avionic Hercules engineer CAUTION: The underfloor heat switch must be off during engine starting and switching of loads from one generator to another. Failure to comply could result in a burned out generator control panel. Why GCP burn out can some body explain with logic that 1.why control bunt out 2. What internal part will be damage
Last reply by munirabbasi, -
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We are facing chronic problem of Generator power leads T1,T 2,T3 are grounded in leading edge plug /connector due to water contaminated.this were happened sequence of aircrafts especially when heavy rain is over . Question raises how water enter in side the plug shell because it is seale & also plenty of A/C darais are there Regards Munir Abbasi Home of hercules pakistan
Last reply by munirabbasi, -
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We get an "Ice detection level 2 " ACAWS under no icing conditions and the plane goes to Ice protection mode. We isolated the fault to a bad Ice Detector, but unable to determine which one out of the two due to the following reasons- (a) ACAWS appears in flight. ( The ACAWS doesn't say no.1 or no.2 Ice detector. Is there a quick and easy way to isolate the faulty Ice detector? We replaced one of them hoping the problem won't reappear......
Last reply by Coby, -
Flight deck bad smell.when no 3 eng bleed valve close then no bad smell.this is new engine.5th & 10th stage bleed valve open & check no oil flashing inside the compressor.speed sensitive valve 14th stage bleed line check & no oil found.please give any idea.
Last reply by Question, -
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Ballast Fuel
by 8252- 6 replies
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Brothers, I am putting together a NATOPS change to include an easy to understand definition of \"Ballast Fuel\". Our NATOPS does not mention it at all. This has been a source of much debate and a soure of confusion to trainees. I am a Little Rock trained FE and was trained on this. The new trainees are not being tought TOLD data the same. My understanding is to use the Fuel Management charts to find the required landing fuel in the wings for a specific cargo weight. Then to get your g load factor and max airspeed. Which is usually only a factor in the decent. I understand that this is usually only a consideration over approx. 30k cargo. Further, my unders…
Last reply by DC10FE, -
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Hello World Expertise Aircraft pulled to left during fast taxing.Replaced Steering control valve ,Brakes assembles(04). Rudder ragging. and Nose wheels and Nose mounting toque checked. MLG shock strut servicing and balancing C/Out and MLG tire pressure checked but defect could not troubleshoot (Repeat) Munir Abbasi Home of hercules Pakistan
Last reply by munirabbasi, -
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Anyone have a published Battery "DC power only" preflight and start procedure?
Last reply by HercMX, -
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Battery Relay With Battery voltage less than 7 volt; is it possible for the battery to be recharged with external ac power? Systematically… is the “Bat. Relay” can only be energized through a good charged battery..? Or it doesn’t matter; as this relay can also be energized through external power for feeding the “Bat.Bus” as well for recharging the battery. Any feedback will be appreciated as we are having an issue of one of the C-130H.
Last reply by NATOPS1, -
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The battery switch and the four propeller control switches are fitted with rubber insulation on their knobs. I am talking about the overhead panel of J Model. Pl tell me what is special about these switches?
Last reply by tinyclark, -
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We are trying to confirm if there are units still using the Benson tanks. This mainly applies to the MC/HC guys and gals. We keep getting conflicting information and the best way is to get it from the source if possible. Email me at [email protected] with your response please. Thanks, Donald "Sonny" Johnston Senior Logistician/Level 2 RCM Analyst Mercer Engineering Research Center 135 Osigian Blvd. Warner Robins, GA 31088 478.953.6800 Ext 2603 or 2541 Fax 478.953.6801
Last reply by SergF, -
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How avoid Bird FOD during landing and take off? Regards Munir Abbasi
Last reply by munirabbasi, -
BIRD NESTS
by JTECH- 22 replies
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I am looking for any feed back from anyone about bird nests in engine nacelles, Specifically but not limited to J-Models. I know that the Canadian H-Models have screens installed on the upper aft nacelle and very rarely do they have nesting issues. We have had many instances of nests being built in lower trays, beside the oil tank and even once found robin eggs in the established nest. Any and all feedback is great.
Last reply by tusker, -
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I am in search of a suitable adapter kit to connect my SA 6000 EX site analyzer to the various co-ax cables. Any suggestions?
Last reply by tinyclark, -
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Hallo, i am a new member here in this forum.i live in the area of Ramstein AB. My question is : A lot of herkys there have grey noses an some black noses.And others receive black noses(former grey).Why have these Herkys different Colors (Noses). Hope someone can give me answers. Sorry for my not so good english. Phantom4
Last reply by Richard Beesmer, -
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Left hand Inboard bladder cell 3 lower attach point were torn. I don't know why? I think the fuel cavity vent was the problem. I found a tape on 2 hole of 1 was uncovered ,I mean the upper of center cell , there is something like a trough has 3 holes.
Last reply by smain, -
Blade angle
by Fred- 11 replies
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Can anyone tell me the actual blades angles of a propeller set "on the cuff" in preparation for a windmill taxi start the USAF airlift C-130E/H method? Thanks
Last reply by rc johnson, -
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All, Got a question for some of you. I was asked today what the blade angle was when we put the prop on the cuff for windmill taxi starts? I didn't have a clue, but was curious if it is above the pitchlock range (25-55 degrees)? Inquiring minds are curious. Laters! Dave
Last reply by 1685FCC, -
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I need to re-insulate a bleed air duct that was stripped for inspection. Unfortunatly the Vendor given in my tech manual has gone out of buisness. Can anybody help with an address for a supplier who can provide the materials for re-insulating bleed air ducts?
Last reply by impact12,
