Small aircraft flown with inoperative stall warning horn. MEL requirements.

Attributes
ACN	317250
Time
Date	199509
Day	Wed
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : dpa
State Reference	IL
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : instructional
Make Model Name	Cessna 152
Operating Under FAR Part	Part 91
Flight Phase	climbout : takeoff cruise other landing other
Flight Plan	None
Person 1
Affiliation	Other
Function	flight crew : first officer instruction : instructor oversight : pic
Qualification	pilot : commercial pilot : instrument pilot : cfi
Experience	flight time last 90 days : 150 flight time total : 2050 flight time type : 120
ASRS Report	317250
Person 2
Affiliation	Other
Function	flight crew : single pilot instruction : trainee
Qualification	pilot : student
Events
Anomaly	aircraft equipment problem : less severe non adherence : far non adherence other
Independent Detector	other flight crewa
Resolutory Action	none taken : detected after the fact
Consequence	Other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

Incomplete understanding of which inoperative equipment can be deferred for repair under far 91.213 resulted in flight of a cessna 152 with an inoperative stall warning horn. FARS are difficult to understand and should be written so that non-lawyers can understand them too. Practical examples should be given in the aim and in the advisory circular concerning far 91.213. My students will now be taught what I have learned.

Original NASA ASRS Text

Title: SMA FLOWN WITH INOP STALL WARNING HORN. MEL REQUIREMENTS.

Narrative: INCOMPLETE UNDERSTANDING OF WHICH INOP EQUIP CAN BE DEFERRED FOR REPAIR UNDER FAR 91.213 RESULTED IN FLT OF A CESSNA 152 WITH AN INOP STALL WARNING HORN. FARS ARE DIFFICULT TO UNDERSTAND AND SHOULD BE WRITTEN SO THAT NON-LAWYERS CAN UNDERSTAND THEM TOO. PRACTICAL EXAMPLES SHOULD BE GIVEN IN THE AIM AND IN THE ADVISORY CIRCULAR CONCERNING FAR 91.213. MY STUDENTS WILL NOW BE TAUGHT WHAT I HAVE LEARNED.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.