Dipsticks

The following is derived from maintenance facility submissions to the FAA’s Service Difficulty Reports database.

Aviation Safety

Thursday, July 04, 2024 at 05:20 AM ET

Verified

Edited By: Omar Filipovic

USAF Thunderbirds Jim Koepnick

Key Takeaways:

Aircraft dipsticks are a common source of diverse issues, ranging from improper securing and detachment to component manufacturing defects like self-disassembly or incorrect markings.
These dipstick-related problems frequently lead to significant operational incidents such as engine oil loss, low oil pressure warnings, engine shutdowns, and emergency landings.
The incidents underscore the critical importance of meticulous preflight inspections, correct installation, and adherence to maintenance procedures to prevent serious aviation safety concerns.

See a mistake? Contact us.

Beech C99 Airliner

Dipstick Not Secured

In cruise shortly after takeoff, the right engine low oil pressure warning light illuminated. The pilot shut down the right engine, declared an emergency and returned without further incident. Maintenance inspected right engine and found its oil dipstick was not secured and performed manufacturer’s recommended inspection. No defect found. Aircraft was returned to service.