Parts · Airframe structure

Sill Drain

238 failure reports named the sill drain in the last ten years, 245 since 2000, most often on the Boeing 737; the condition most often found was "corroded".

Reports by year

Reports by year, as a table

	reports
2000	4
2001	2
2002	1
2017	7
2019	3
2020	1
2021	3
2022	8
2023	4
2024	77
2025	79
2026	56

Which system the reports file it under last ten years

Airframe structure234Cabin, seats and restraints4

Reports by system, as a table

	reports
Airframe structure	234
Cabin, seats and restraints	4

Models most often reporting it last ten years

Boeing 737139Embraer ERJ 170 E170 and E17542Bombardier CL-600 Challenger and CRJ10Embraer EMB-145 ERJ 1459Airbus A3214Boeing 7574Airbus A3202Airbus A3191

Models most reported, as a table

	reports
Boeing 737	139
Embraer ERJ 170 E170 and E175	42
Bombardier CL-600 Challenger and CRJ	10
Embraer EMB-145 ERJ 145	9
Airbus A321	4
Boeing 757	4
Airbus A320	2
Airbus A319	1

How it failed the condition found, last ten years

corroded198clogged15odor11cracked6damaged2missing2blocked1chafed1elongated1scratched1

Conditions found, as a table

	reports
corroded	198
clogged	15
odor	11
cracked	6
damaged	2
missing	2
blocked	1
chafed	1
elongated	1
scratched	1

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.