An AR15 was cleared to cross runway 31R while a CH7A was landing on same runway at rhv.

Attributes
ACN	624855
Time
Date	200407
Day	Mon
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : rhv.airport
State Reference	CA
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : personal
Make Model Name	Champion Citabria 7ECA
Operating Under FAR Part	Part 91
Flight Phase	landing : roll
Flight Plan	VFR
Aircraft 2
Controlling Facilities	tower : rhv.tower
Operator	general aviation : personal
Make Model Name	Aeronca Champion
Operating Under FAR Part	Part 91
Flight Phase	ground : taxi
Flight Plan	VFR
Person 1
Affiliation	other
Function	flight crew : single pilot
Qualification	pilot : cfi pilot : atp pilot : commercial
Experience	flight time last 90 days : 300 flight time total : 23000 flight time type : 1500
ASRS Report	624855
Person 2
Affiliation	other
Function	flight crew : single pilot
Events
Anomaly	conflict : ground critical incursion : runway
Independent Detector	other flight crewa
Resolutory Action	flight crew : took evasive action
Miss Distance	horizontal : 600
Supplementary
Problem Areas	Flight Crew Human Performance ATC Human Performance
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error
Situations
ATC Facility	staffing : rhv.tower

Narrative:

While training another instructor, flying a citabria, we received landing clearance on downwind. During our flare to touchdown, an aeronca was cleared to cross runway 31R at taxiway C midfield. Our touchdown, approximately 200 ft past the displaced threshold, occurred at the same time as the aeronca entered our runway. We applied heavy braking and exited the runway. Before the occurrence, the controller was very curt with other pilots and had just chastised, verbally, a student pilot on frequency for not listening up. That aircraft was a cirrus. The controller's tone appeared that he noticed his mistake, but did not say anything over the radio to incriminate his near fatal action. Nothing was said over the radio by any parties afterward. We were totally shocked at this controller's action of not paying attention to active runways before issuing clrncs. This controller has been a real problem at rhv in the past. It is my opinion that this situation might have had a disastrous result if less experienced pilots were involved. It is my opinion that this runway incursion is being covered up by the controller.

Original NASA ASRS Text

Title: AN AR15 WAS CLRED TO CROSS RWY 31R WHILE A CH7A WAS LNDG ON SAME RWY AT RHV.

Narrative: WHILE TRAINING ANOTHER INSTRUCTOR, FLYING A CITABRIA, WE RECEIVED LNDG CLRNC ON DOWNWIND. DURING OUR FLARE TO TOUCHDOWN, AN AERONCA WAS CLRED TO CROSS RWY 31R AT TXWY C MIDFIELD. OUR TOUCHDOWN, APPROX 200 FT PAST THE DISPLACED THRESHOLD, OCCURRED AT THE SAME TIME AS THE AERONCA ENTERED OUR RWY. WE APPLIED HVY BRAKING AND EXITED THE RWY. BEFORE THE OCCURRENCE, THE CTLR WAS VERY CURT WITH OTHER PLTS AND HAD JUST CHASTISED, VERBALLY, A STUDENT PLT ON FREQ FOR NOT LISTENING UP. THAT ACFT WAS A CIRRUS. THE CTLR'S TONE APPEARED THAT HE NOTICED HIS MISTAKE, BUT DID NOT SAY ANYTHING OVER THE RADIO TO INCRIMINATE HIS NEAR FATAL ACTION. NOTHING WAS SAID OVER THE RADIO BY ANY PARTIES AFTERWARD. WE WERE TOTALLY SHOCKED AT THIS CTLR'S ACTION OF NOT PAYING ATTN TO ACTIVE RWYS BEFORE ISSUING CLRNCS. THIS CTLR HAS BEEN A REAL PROB AT RHV IN THE PAST. IT IS MY OPINION THAT THIS SIT MIGHT HAVE HAD A DISASTROUS RESULT IF LESS EXPERIENCED PLTS WERE INVOLVED. IT IS MY OPINION THAT THIS RWY INCURSION IS BEING COVERED UP BY THE CTLR.

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.