A fokker 100 was dispatched with a lighting system deferral that was in conflict with the MEL.

Attributes
ACN	410020
Time
Date	199808
Day	Sat
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : zzz
State Reference	US
Altitude	agl bound lower : 0 agl bound upper : 0
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Fokker 100
Operating Under FAR Part	Part 121
Flight Phase	other
Flight Plan	None
Person 1
Affiliation	company : air carrier
Function	other personnel other personnel other
Qualification	other
ASRS Report	410020
Person 2
Affiliation	company : air carrier
Function	other personnel other other personnel other oversight : supervisor
Qualification	other other : other
Events
Anomaly	aircraft equipment problem : less severe non adherence : published procedure 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:

F100 MEL XXX, night operations, per maintenance technician, advised aircraft good for night flight with 1 bulb inoperative. MEL states always required. MEL requires clarification.

Original NASA ASRS Text

Title: A FOKKER 100 WAS DISPATCHED WITH A LIGHTING SYS DEFERRAL THAT WAS IN CONFLICT WITH THE MEL.

Narrative: F100 MEL XXX, NIGHT OPS, PER MAINT TECHNICIAN, ADVISED ACFT GOOD FOR NIGHT FLT WITH 1 BULB INOP. MEL STATES ALWAYS REQUIRED. MEL REQUIRES CLARIFICATION.

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.