Accident Quad City Challenger II S N2NX, Sunday 7 June 1998

You can contribute by submitting additional or updated information.

Date:	Sunday 7 June 1998
Time:	12:30 LT
Type:	Quad City Challenger II S
Owner/operator:	Private
Registration:	N2NX
MSN:	CH20391CW066
Total airframe hrs:	200 hours
Engine model:	Hirth 2703
Fatalities:	Fatalities: 0 / Occupants: 2
Other fatalities:	0
Aircraft damage:	Substantial
Category:	Accident
Location:	Pleasant Valley, AZ - United States of America
Phase:	En route
Nature:	Private
Departure airport:	, AZ (KPVA)
Destination airport:	Glendale, AZ (KGEU)
Investigating agency:	NTSB
Confidence Rating:	Accident investigation report completed and information captured

Narrative:
The pilot reported that during cruise he noted a loss of rpm's and attempted to make an emergency landing in a dry sandy riverbed. After touchdown the landing gear collapsed, and the aircraft sank into the sand. The pilot inspected the engine and observed the following: a broken spark plug retainer spring and a loose spark plug wire cap.

Probable Cause: Loss of engine power due to a loose spark plug wire cap caused by a broken spark plug retainer spring.

Accident investigation: