Commuter aircraft released with improper MEL deferment.

Attributes
ACN	295725
Time
Date	199502
Day	Mon
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : iad
State Reference	VA
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Dash 8-100
Operating Under FAR Part	Part 121
Flight Phase	ground : preflight
Person 1
Affiliation	company : air carrier
Function	other personnel
Qualification	other pilot : instrument pilot : commercial
Experience	flight time last 90 days : 0 flight time total : 250
ASRS Report	295725
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	non adherence : far other anomaly other
Independent Detector	other other : unspecified
Resolutory Action	none taken : detected after the fact
Consequence	Other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

Aircraft was scheduled to fly flight iad-jfk. Maintenance deferred MEL 22-1 (autoplt) and MEL 22-6 (flight guidance computer- FGC). After checking the MEL book for possible restrictions, I amended the flight release with the flight crew. MEL 22-6 can only be deferred on a dash 8-300 and this is a dash 8-100. This disagreement was discovered after 4 legs of flight.

Original NASA ASRS Text

Title: COMMUTER ACFT RELEASED WITH IMPROPER MEL DEFERMENT.

Narrative: ACFT WAS SCHEDULED TO FLY FLIGHT IAD-JFK. MAINT DEFERRED MEL 22-1 (AUTOPLT) AND MEL 22-6 (FLT GUIDANCE COMPUTER- FGC). AFTER CHKING THE MEL BOOK FOR POSSIBLE RESTRICTIONS, I AMENDED THE FLT RELEASE WITH THE FLC. MEL 22-6 CAN ONLY BE DEFERRED ON A DASH 8-300 AND THIS IS A DASH 8-100. THIS DISAGREEMENT WAS DISCOVERED AFTER 4 LEGS OF FLT.

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.