Airflow meter...

[Hedgehopper]

The bracket holding my airflow meter to the inner wing has come loose. Could anyone tell me what the fixing bolt screws in to? Is it a captive nut or perhaps a bonded in threaded bobbin? Reluctanant to undo it in case something drops off inside the inner wing and is lost forever.

Thanks in advance for any help.

[Johno]

Captive . . . Just unscrew it gently, penetrting oil if it looks a little tired/corroded.

[Hedgehopper]

Thanks Johno, Just a bit worried as bolt seems tight so perhaps captive nut has come loose. Will start with the penetrating oil.