Tee Angle

246 failure reports named the tee angle in the last ten years, 249 since 1995, most often on the Boeing 757; the condition most often found was "corroded". 1 FAA approvals let 1 company make a replacement tee angle, Airborne Maintenance & Engineering Services holding the most (1).

Reports by year

Reports by year, as a table

	reports
1995	2
1996	1
2019	1
2020	2
2021	7
2022	5
2023	35
2024	80
2025	66
2026	50

Which system the reports file it under last ten years

Airframe structure245Engine1

Reports by system, as a table

	reports
Airframe structure	245
Engine	1

Models most often reporting it last ten years

Boeing 757145Boeing 73737Mcdonnell Douglas MD-1114Boeing 76711Embraer EMB-145 ERJ 1457Lockheed 3827Boeing 7475Airbus A3194Airbus A3304Bombardier CL-600 Challenger and CRJ4Airbus A3002Airbus A3202

Models most reported, as a table

	reports
Boeing 757	145
Boeing 737	37
Mcdonnell Douglas MD-11	14
Boeing 767	11
Embraer EMB-145 ERJ 145	7
Lockheed 382	7
Boeing 747	5
Airbus A319	4
Airbus A330	4
Bombardier CL-600 Challenger and CRJ	4
Airbus A300	2
Airbus A320	2

How it failed the condition found, last ten years

corroded179cracked44damaged11gouged4broken2mechanic error2none2bent1perforated1

Conditions found, as a table

	reports
corroded	179
cracked	44
damaged	11
gouged	4
broken	2
mechanic error	2
none	2
bent	1
perforated	1

Approved replacement parts 1 parts manufacturer approvals

A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a tee angle and sell it as an approved part for the models named. These are the companies holding such approvals for a tee angle:

Airborne Maintenance & Engineering Services 1

For these models most: Boeing 737 (1).

Maker	Part	Replaces	Fits	Granted	Status
Airborne Maintenance & Engineering Services	Tee Angle 0370-26-0001-103	0370-26-0001-103	Boeing 737-700	2022-04-25	current

Sources: the FAA's service difficulty reports since 1995 (a report is a part that failed and was fixed, as filed by an airline, repair station or owner; the count shows reporting as much as reliability) and the parts manufacturer approvals in the FAA's Dynamic Regulatory System. The part name is the reporters' and the approval holders' own words, reduced to the first plain words so that spellings meet.