#6 cylinder failure. Return land mia.

Attributes
ACN	196357
Time
Date	199112
Day	Thu
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : mia
State Reference	FL
Altitude	msl bound lower : 6000 msl bound upper : 6000
Environment
Flight Conditions	Mixed
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : mia tower : grr
Operator	common carrier : air carrier
Make Model Name	Small Transport, Low Wing, 2 Recip Eng
Flight Phase	climbout : intermediate altitude
Route In Use	enroute : on vectors
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : single pilot
Qualification	pilot : atp pilot : commercial pilot : instrument pilot : flight engineer
Experience	flight time last 90 days : 300 flight time total : 6000 flight time type : 350
ASRS Report	196357
Person 2
Affiliation	company : air carrier
Function	controller : departure
Qualification	controller : radar
Events
Anomaly	aircraft equipment problem : critical
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	controller : issued new clearance flight crew : declared emergency other
Consequence	Other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

While climbing through 6000 ft MSL, right engine shuddered, backfired, lost manifold pressure, lost propeller RPM, lost oil pressure and egt. Immediately requested, and was granted, clearance to return to mia, precautionary. Planned flight was 3.5 hours over water, kmia to mtch. Landing was uneventful, engine continued to produce power (reduced) and emergency equipment assistance was not requested. Maintenance later reported #6 cylinder failure.

Original NASA ASRS Text

Title: #6 CYLINDER FAILURE. RETURN LAND MIA.

Narrative: WHILE CLBING THROUGH 6000 FT MSL, R ENG SHUDDERED, BACKFIRED, LOST MANIFOLD PRESSURE, LOST PROP RPM, LOST OIL PRESSURE AND EGT. IMMEDIATELY REQUESTED, AND WAS GRANTED, CLRNC TO RETURN TO MIA, PRECAUTIONARY. PLANNED FLT WAS 3.5 HRS OVER WATER, KMIA TO MTCH. LNDG WAS UNEVENTFUL, ENG CONTINUED TO PRODUCE PWR (REDUCED) AND EMER EQUIP ASSISTANCE WAS NOT REQUESTED. MAINT LATER RPTED #6 CYLINDER FAILURE.

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.