C150 STC Muffler Inspections

Ask Questions and Offer Advice Related to the Cessna 120 & 140 Type
Forum rules
You must be a member of the Cessna 120-140 Association in order to post new topics, reply to existing topics, or search for information on this forum. Use the "Join" link in the red menu bar.
Post Reply
User avatar
gryph0n
Posts: 31
Joined: Mon Dec 09, 2019 12:38 pm
Name: Steve S British Columbia Repr
Location: CAK3 Delta Airpark, BC
Aircraft Type: 1948 C-140 O200
Occupation-Interests:
Contact:

C150 STC Muffler Inspections

Post by gryph0n »

I spent last weekend going through the maintenance records for my new C140. There was an STC for conversion to a C150 style exhaust about 4 years back (taildragger aviation STC), however subsequent annual inspections have noted “CW A/D 48-25-02, next due in 100hrs TT”. I checked this A/D, and it notes a 25 hour inspection interval. Does this A/D still apply to my aircraft?

Thanks, Steve S
8474
Posts: 313
Joined: Sat May 25, 2019 12:08 pm
Name: Blaine F
Location: Saskatchewan
Aircraft Type: C140A
Occupation-Interests: Helicopter Pilot
Contact:

Re: C150 STC Muffler Inspections

Post by 8474 »

No, that's the reason to have the 150 style STC, 100 hr inspections. The 25 hour applies to the pancake style.
User avatar
gryph0n
Posts: 31
Joined: Mon Dec 09, 2019 12:38 pm
Name: Steve S British Columbia Repr
Location: CAK3 Delta Airpark, BC
Aircraft Type: 1948 C-140 O200
Occupation-Interests:
Contact:

Re: C150 STC Muffler Inspections

Post by gryph0n »

Blaine F, I like your answer!
User avatar
6643
Posts: 2477
Joined: Tue May 01, 2018 7:00 am
Name: John C
Location: KLCI, NH
Aircraft Type: 1946 C140/C90
Occupation-Interests: A&P, semi-retired
Contact:

Re: C150 STC Muffler Inspections

Post by 6643 »

Your log entry should say AD 48-25-02 Not Applicable: Not Installed
Post Reply