Maintenance problem

[GauzeGuy]

A C152 at my club is down for maintenance. The reason is listed as: "Flaps stuck at 10 degrees, Hobbs meter inop."

I'm wondering where the problem is?

 

[saracelica]

Electrical issue I presume.

 

[Threefingeredjack]

A C152 at my club is down for maintenance. The reason is listed as: "Flaps stuck at 10 degrees, Hobbs meter inop."

I'm wondering where the problem is?

Hobbs inop is not a bad thing.

 

[poadeleted20]

You hinting at someone trying to sneak some free flying time by turning off the master?

 

[flyingmoose]

Ha sounds like the master switch is off.

 

[Dan Thomas]

Flaps down limit microswitch has failed. It's inside the right wing and is a pain to get at.

Dan

 

[poadeleted20]

Flaps down limit microswitch has failed. It's inside the right wing and is a pain to get at.

And the Hobbs failure is independent?

 

[Greg Bockelman]

And the Hobbs failure is independent?

From the electrical diagram I can find, apparently so. It looks like it is on a separate circuit from the flaps.

 

[NineThreeKilo]

Turning the master off won't kill the Hobbs in most aircraft.

 

[Greg Bockelman]

You hinting at someone trying to sneak some free flying time by turning off the master?

Ha sounds like the master switch is off.

Seems to me, if the master was purposely switched off to "disable" the Hobbs meter, a write-up to the effect that the Hobbs was inop would draw unwanted attention to the practice.

 

[Greg Bockelman]

Turning the master off won't kill the Hobbs in most aircraft.

And that is true of the 152 also, according to the diagram I can find.

 

[kmead]

Check the AGS fuse on the HM first. The flap problem could be a pre-select switch on the select lever or a limit switch on the actuator. Many times the screws will fall off the ring terminals of the pre select switches. Sometimes a microswitch wont click when it's bad.

 

[flyingron]

Given a choice which instrument to smash in a static system failure, many students choose the hobbs.

 

[Tom-D]

Seems to me, if the master was purposely switched off to "disable" the Hobbs meter, a write-up to the effect that the Hobbs was inop would draw unwanted attention to the practice.

If the master was turned off, why didn't the pilot, write up the radios too?

 

[wabower]

A certain circuit breaker will do it on some airplanes.

Turning the master off won't kill the Hobbs in most aircraft.

 

[Mike5250]

Turning the master off won't kill the Hobbs in most aircraft.

If it did I would add "master off" to my cruise checklist!