Lower than Standard Takeoff Minimums - Regulations Flashcards
You’re fairly certain your Part 135 organization has lower than standard takeoff minimums, but you aren’t quite sure on the specifics. What is the main reference for lower than standard takeoff minimums?
Operations Specifications Section C079.
Your organization has both single-engine and multiengine airplanes and has been issued OpSpec C079 for lower than standard takeoff minimums. Do the same rules apply to all the aircraft operated under the OpSpec?
No, single-engine aircraft carrying passengers are not allowed to use lower than standard takeoff minimums.
Some operators occasionally dispatch aircraft under Part 91 rules. Do lower than standard takeoff minimums apply when operating under Part 91 rules?
No, lower than standard takeoff minimums do not apply to Part 91 operations. Part 91 operators can take off in zero-zero conditions.
You recently became a PIC, and have accumulated about 80 hours of PIC time in the King Air 350. The weather is 1/4 statute mile visibility (1600 RVR). OpSpec C079 allows your operation to go as low as 600 RVR. Are you authorized to takeoff with 1/4 statute mile visibility?
No, only a PIC with at least 100 hours as a PIC in the make and model aircraft can takeoff in conditions less than standard takeoff minimums.
When the airport’s visibility is lower than the lowest IFR approach minimums, what else are you required to do before you takeoff?
You must file for a takeoff alternate airport within an hour of the departure airport (at normal cruising speed in still air).
The RVR is 1000 feet which is below the lowest landing minimum for the ILS. There are no viable takeoff alternate airports within an hour of your departure airport, what is your best option?
You must wait until visibility improves to at least the lowest applicable IFR approach landing minimums.
You are approved in your OPSPEC C079 for lower than standard minimums and you often fly to airports outside of the United States and to military bases. What are your takeoff minimums at foreign and military airports?
You are obligated to follow the foreign and military airport’s takeoff minimums regardless of your OpSpecs.
Some of the two-engine aircraft in your operation only require one pilot. On passenger-carrying flights with only one pilot, what are your takeoff limitations if you take off from KEUG Runway 16R (see Jepp chart)?
5000 RVR.
Your OpSpec C079 only authorizes you to go down to RVR of 600, but if you look at the Jeppesen chart for KPDX, it allows for an RVR of 500. Are you allowed to takeoff when the TDZ RVR is 500?
No, you are only authorized to go as low as 600 RVR, not 500 RVR.
Do the climb gradients found in the published takeoff minimums for that airport still apply when you use lower than standard takeoff minimums?
Yes, the climb gradients still apply. Only the visibility requirement may be reduced.
When an airport has no transmissometer to give you RVR or RVV values, you must use the prevailing visibility as reported in the METAR. What does 1600 RVR translate to in visibility?
1/4 statute mile.
If the RVR system isn’t working at your airport or the airport doesn’t report RVR, what are your takeoff minimums?
You are limited to 1/4 sm visibility provided you have adequate visual reference of the runway from lights or other runway markings.
You are cleared to line up and wait, but as you taxi out, ATC reports the TDZ RVR is 600, the Mid RVR is 400 RVR and Rollout RVR is 300. You are authorized to take off with 600 RVR. Without a HUD, what do you do?
Exit the runway and wait until conditions improve.
The NOTAM at KDAL reads “DAL RWY 13L/31R CL OUT OF SERVICE 1707122050-1708251100”. The airport’s HIRL lights are operating and the runway has centerline markings. What is the lowest RVR you can use when the centerline lights are not operating?
1000 RVR.
The RVR is below 1600, but only TDZ RVR is working. Can you still go?
No, two operative RVR systems are required for operations below 1600 RVR.
