Parts · Heating, ice protection and utility systems

Humidifier

2 failure reports named the humidifier in the last ten years, 9 since 1996, most often on the Boeing 737; the condition most often found was "leaking". 4 FAA approvals let 1 company make a replacement humidifier, United Technologies, Hamilton Sundstrand holding the most (4).

Reports by year

Reports by year, as a table

	reports
1996	1
1999	2
2003	1
2004	1
2005	1
2006	1
2026	2

Which system the reports file it under last ten years

Heating, ice protection and utility systems2

Reports by system, as a table

	reports
Heating, ice protection and utility systems	2

Models most often reporting it last ten years

Boeing 7371Boeing 787 Dreamliner1

Models most reported, as a table

	reports
Boeing 737	1
Boeing 787 Dreamliner	1

How it failed the condition found, last ten years

leaking1odor1

Conditions found, as a table

	reports
leaking	1
odor	1

Approved replacement parts 4 parts manufacturer approvals

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

United Technologies, Hamilton Sundstrand 4

For these models most: Boeing 777 (3), Boeing 747 (1).

Maker	Part	Replaces	Fits	Granted	Status
United Technologies, Hamilton Sundstrand	Humidifier, Flight Deck 816086-3	S214W002-100	Boeing 777-200 Series, 777-300 Series	2004-03-07	current
United Technologies, Hamilton Sundstrand	Humidifier, Flight Deck 816086-2	816086-2	Boeing 777-200, -300	2002-08-06	current
United Technologies, Hamilton Sundstrand	Humidifier, Flight Deck 821486-1	Boeing S214W002-200	Boeing 747-400 series	1999-02-04	current
United Technologies, Hamilton Sundstrand	Humidifier, Flight Deck 816086-1	Boeing S214W002-100	Boeing 777-300 Series, 777-200 series	1999-01-13	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.