PVT PLT OF AN MO2J FAILED TO PUT THE LNDG GEAR DOWN WHEN RETURNING TO LAND DUE TO THE BAGGAGE DOOR OPENING INFLT. THE UNUSUAL WIND NOISE OF THE DOOR OPENING CREATED SUCH A DISTR THAT RPTR DID NOT USE HIS USUAL CHK PROC PRIOR TO LNDG.

Narrative

GEAR UP LNDG: PROB STARTED FOLLOWING NORMAL TKOF WHEN THE LUGGAGE DOOR OPENED FULLY AT APPROX 200 FT AGL. CALLED TWR AND WAS GIVEN PERMISSION TO RETURN AND CLRED TO LAND. MY ATTN WAS DIVERTED BY THE ADDITIONAL NOISE; SOME OBJECTS MOVING AROUND THE CABIN AND CONCERN THAT THE ACFT PERFORMANCE WOULD BE ADVERSELY AFFECTED BY THE DOOR POSITIONED DIRECTLY UP IN THE AIRSTREAM. DUE TO THIS DIVERSION I FAILED TO COMPLETE FINAL GUMPS CHK AND DID NOT SEE THAT THE LNDG GEAR WAS STILL UP. DID HAVE A VERY SMOOTH LNDG. SUDDEN STOP TO PROP AND ENG. CONTRIBUTING FACTOR TO INCIDENT WAS BEING A LOW TIME PLT -- LESS EXPERIENCE IN DEALING WITH UNUSUAL SITS. HUMAN PERFORMANCE CONSIDERATIONS: IMPACT OF AN UNUSUAL SIT (EVEN THOUGH NOT AN EMER) ON NORMAL PROCS WAS MUCH GREATER THAN EXPECTED. THE SUBJECT OF A CABIN DOOR OPENING DURING FLT CAME UP IN MY TRAINING AND IN SAFETY MEETINGS THAT I HAVE ATTENDED. EMPHASIS WAS PLACED ON THE FACT THAT IT WAS NOT AN EMER SIT. MY RECOMMENDATION IS THAT TRAINING SHOULD EMPHASIZE THE FACT THAT THE EXISTENCE OF THIS TYPE OF PROB WILL HAVE A GREATER IMPACT ON THE PLT THAN EXPECTED BECAUSE OF THE DIVISION OF HIS ATTN AND THAT THE PLT NEEDS TO BE TRAINED TO REDOUBLE HIS FOCUS ON THE BASICS OF FLYING THE PLANE AND FOLLOWING ALL STANDARD CHKLISTS IN ORDER TO AVOID HAVING AN INCIDENT LIKE MINE.