A DHC6 jump plane pilot was released under part 91, but was not released under part 105.

Attributes
ACN	524420
Time
Date	200109
Day	Fri
Local Time Of Day	1201 To 1800
Place
State Reference	AZ
Altitude	msl single value : 15000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : personal
Make Model Name	Twin Otter DHC-6
Flight Plan	IFR
Aircraft 2
Flight Phase	cruise : level
Person 1
Affiliation	company : air taxi
Function	flight crew : single pilot
Qualification	pilot : multi engine pilot : atp pilot : cfi
Experience	flight time last 90 days : 300 flight time total : 4300 flight time type : 1500
ASRS Report	524420
Events
Anomaly	non adherence : far
Resolutory Action	none taken : detected after the fact
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance

Narrative:

After coordinating throughout the day with FSS and center in an effort to drop skydivers, I received an IFR clearance and dropped one load of jumpers. On the second load, prior to releasing jumpers, center advised that I abort. I complied by not releasing jumpers. I requested and received a visual approach clearance to descend and land. My postflt phone conversation with center revealed that although part 91 IFR had been released, part 105 operations had not. I am not conducting further in-flight skydiving activities until confirmation of release of part 105 operations is received.

Original NASA ASRS Text

Title: A DHC6 JUMP PLANE PLT WAS RELEASED UNDER PART 91, BUT WAS NOT RELEASED UNDER PART 105.

Narrative: AFTER COORDINATING THROUGHOUT THE DAY WITH FSS AND CTR IN AN EFFORT TO DROP SKYDIVERS, I RECEIVED AN IFR CLRNC AND DROPPED ONE LOAD OF JUMPERS. ON THE SECOND LOAD, PRIOR TO RELEASING JUMPERS, CTR ADVISED THAT I ABORT. I COMPLIED BY NOT RELEASING JUMPERS. I REQUESTED AND RECEIVED A VISUAL APCH CLRNC TO DSND AND LAND. MY POSTFLT PHONE CONVERSATION WITH CTR REVEALED THAT ALTHOUGH PART 91 IFR HAD BEEN RELEASED, PART 105 OPS HAD NOT. I AM NOT CONDUCTING FURTHER INFLT SKYDIVING ACTIVITIES UNTIL CONFIRMATION OF RELEASE OF PART 105 OPS IS RECEIVED.

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.