Narrative:

I had small aircraft X doing touch and goes on runway 21 VFR and had an small transport Y as an IFR inbound to land on runway 29. I cleared the small transport Y to land and instructed him to hold short of runway 21 with runway length from the approach end of runway 29 to the runway 21 intersection of approximately 5200 ft. I did not realize the small transport Y was categorized as a large type III aircraft and could not legally hold short but he acknowledged the transmission and landed holding short of runway 21 as requested. This caused a runway incursion to occur which I did not discover until after reviewing the 7110.65 aircraft types and categories. This type of occurrence would not have occurred if the pilot had advised me of his type aircraft and that insufficient runway length was available to legally hold short. I would request that pilots instead of acknowledging and obeying to an illegal instruction advise the tower that they are unable so alternate procedures or actions could be taken, i.e., go around. Supplemental information from acn 189134: I observed an small transport Y on landing roll on runway 29 and appeared to be holding short of runway 3. 5000 ft is available from the end of runway 29 to the edge of runway 3. Small aircraft X was in the air on departure after completing a touch and go on runway 3. After informing the local controller that an small transport Y is a category 4 and land to hold short restriction was not applicable, the local controller replied, 'oh, I asked him if he could hold short, he said he could so I issued it.' while this is a violation of intersecting runway separation paragraphs, I feel this could be avoided in the future by pilots not volunteering to hold short or change the rules by allowing pilots to hold short once the appropriate information is exchanged (amount of runway available, wind information, timeliness of information exchange). I mention the second option because it happens almost every time bloomington uses runway 29. An aircraft that isn't authorized to be cleared to land runway 29 and hold short runway 21 or 3 will volunteer to hold short of runway 21 or 3 to help the controller out.

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Original NASA ASRS Text

Title: SMA X HAD LTSS INTERSECTING RWY SEPARATION FROM SMT X. SYS ERROR.

Narrative: I HAD SMA X DOING TOUCH AND GOES ON RWY 21 VFR AND HAD AN SMT Y AS AN IFR INBOUND TO LAND ON RWY 29. I CLRED THE SMT Y TO LAND AND INSTRUCTED HIM TO HOLD SHORT OF RWY 21 WITH RWY LENGTH FROM THE APCH END OF RWY 29 TO THE RWY 21 INTXN OF APPROX 5200 FT. I DID NOT REALIZE THE SMT Y WAS CATEGORIZED AS A LARGE TYPE III ACFT AND COULD NOT LEGALLY HOLD SHORT BUT HE ACKNOWLEDGED THE XMISSION AND LANDED HOLDING SHORT OF RWY 21 AS REQUESTED. THIS CAUSED A RWY INCURSION TO OCCUR WHICH I DID NOT DISCOVER UNTIL AFTER REVIEWING THE 7110.65 ACFT TYPES AND CATEGORIES. THIS TYPE OF OCCURRENCE WOULD NOT HAVE OCCURRED IF THE PLT HAD ADVISED ME OF HIS TYPE ACFT AND THAT INSUFFICIENT RWY LENGTH WAS AVAILABLE TO LEGALLY HOLD SHORT. I WOULD REQUEST THAT PLTS INSTEAD OF ACKNOWLEDGING AND OBEYING TO AN ILLEGAL INSTRUCTION ADVISE THE TWR THAT THEY ARE UNABLE SO ALTERNATE PROCS OR ACTIONS COULD BE TAKEN, I.E., GAR. SUPPLEMENTAL INFO FROM ACN 189134: I OBSERVED AN SMT Y ON LNDG ROLL ON RWY 29 AND APPEARED TO BE HOLDING SHORT OF RWY 3. 5000 FT IS AVAILABLE FROM THE END OF RWY 29 TO THE EDGE OF RWY 3. SMA X WAS IN THE AIR ON DEP AFTER COMPLETING A TOUCH AND GO ON RWY 3. AFTER INFORMING THE LCL CTLR THAT AN SMT Y IS A CATEGORY 4 AND LAND TO HOLD SHORT RESTRICTION WAS NOT APPLICABLE, THE LCL CTLR REPLIED, 'OH, I ASKED HIM IF HE COULD HOLD SHORT, HE SAID HE COULD SO I ISSUED IT.' WHILE THIS IS A VIOLATION OF INTERSECTING RWY SEPARATION PARAGRAPHS, I FEEL THIS COULD BE AVOIDED IN THE FUTURE BY PLTS NOT VOLUNTEERING TO HOLD SHORT OR CHANGE THE RULES BY ALLOWING PLTS TO HOLD SHORT ONCE THE APPROPRIATE INFO IS EXCHANGED (AMOUNT OF RWY AVAILABLE, WIND INFO, TIMELINESS OF INFO EXCHANGE). I MENTION THE SECOND OPTION BECAUSE IT HAPPENS ALMOST EVERY TIME BLOOMINGTON USES RWY 29. AN ACFT THAT ISN'T AUTHORIZED TO BE CLRED TO LAND RWY 29 AND HOLD SHORT RWY 21 OR 3 WILL VOLUNTEER TO HOLD SHORT OF RWY 21 OR 3 TO HELP THE CTLR OUT.

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.