BELL 427 — Service Bulletins
2 service bulletins references for the BELL 427.
Overview
ALERT SERVICE BULLETIN 427-21-44 · 2021
This Alert Service Bulletin (ASB) 427-21-44 provides instructions for the inspection and replacement of the transmission oil check valve on Bell 427 helicopters. It addresses potential issues with check valves manufactured by Circor Aerospace that may be susceptible to cracking and outlines compliance timelines for inspections and replacements.
- Affected helicopters: Serial numbers 56001-56084, 58001, 58002.
- Inspection required within 25 flight hours or 30 days.
- Check valves without 'TQL' marking may crack over time.
- Part III replacement required no later than 600 flight hours or 12 months.
- No warranty credit for parts or labor associated with this bulletin.
- No special tools required for inspection or replacement.
- Weight and balance not affected by this bulletin.
- Contact Bell Product Support for questions.
2 documents
BELL 427 — Service Bulletins FAQ
How many Service Bulletins documents does Sprinkle have for the BELL 427?
Sprinkle has 2 Service Bulletins documents on file for the BELL 427.
What year is the BELL 427 Service Bulletins?
The BELL 427 Service Bulletins on file is dated 2021.
Where does Sprinkle's BELL 427 Service Bulletins come from?
This BELL 427 Service Bulletins was originally published by bellcustomer.com and is hosted on Sprinkle with full text and specs.