The U.S. aircraft register, updated daily
Parts

Liquid Level

No failure report names the liquid level. 12 FAA approvals let 5 companies make a replacement liquid level, Monogram Systems holding the most (6).

Approved replacement parts 12 parts manufacturer approvals

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

For these models most: Mcdonnell Douglas DC-9 (2), Mcdonnell Douglas Aircraft Co MD-88 (2), Dassault FALCON 7 (2), Quest Aircraft Co Inc KODIAK 100 (1), Dassault MYSTERE FALCON 900 (1), Dassault FALCON 2000 (1).

MakerPartReplacesFitsGrantedStatus
Ao Aviation, LLCLiquid Level Sensor 91002029100202Quest Aircraft Company Kodiak 1002018-08-12current
Monogram SystemsLiquid Level Transmitter 13503-110(13503-110)Dassault Falcon 2000EX2015-07-01current
Monogram SystemsLiquid Level Transmitter 13503-110(13503-110)Dassault Falcon 7X2015-07-01current
Monogram SystemsLiquid Level Transmitter 13503-106(13503-106)Dassault Falcon 7X2015-07-01current
Monogram SystemsLiquid Level Transmitter 13503-106(13503-106)Dassault Mystere Falcon 9002015-07-01current
Monogram SystemsLiquid Level Sensor 38000-110-20338000-110-203Airbus A380-841, -842, -8612008-08-03current
Monogram SystemsLIQUID LEVEL SENSOR 38000-110-20138000-110-201Airbus A380-841, -8422007-02-08current
Eaton Aerospace LLCLiquid Level Gauge S257BEurocopter S257BEurocopter Deutschland MBB-BK117A-1, A-3, A-42006-02-23current
Eaton Aerospace LLCLiquid Level Gauge S257AEurocopter P/N S257AEurocopter Deutschland MBB-BK117A-1, A-3, A-42005-09-02current
Eaton Aerospace LLCLiquid Level Gauge S186Eurocopter S186Eurocopter Deutschland BO 1052004-05-25current
Ametek Aerospace and Defense, A Division of Ametek INC.Liquid Level Sensor 8TJ146AAP1McDonnell Douglas 8TJ1-46AAP1McDonnell Douglas DC-9-81, -82, -831995-06-22current
Ametek AerospaceLiquid Level Sensor 8TJ146AAP1McDonnell Douglas 8TJ1-46AAP1McDonnell Douglas DC-9-81, -82, -831995-06-21current

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.