Aircraft Dispatcher O&P Questions and Answers

Aircraft Dispatcher O&P 1) Do I have a High Mins (Baby) Capt? (FAR 121.652) - Answer- If PIC100 hours as PIC in Aircraft Type the MDA (minimum descent altitude) and DH (Decision Height) {destination/landing} will be increased 100 ft and +1/2 SM -This does not apply to alternate; however, minimums must never be less than 300 ft or 1 SM 2) Can I take off? (FAR 121.651 or 91.175) *(97.3) - Answer- 1. OPS Specs 2. 91.175 (f) Civil Airport Takeoff minimums- Pilot can't take off under IFR unless wx conditions at time of takeoff are at or above the wx minimums for IFR. If takeoff wx mins are not prescribed under part 97 for particular airport, the following wx mins apply: 2 engines or less - 1 SM visibility. Aircraft having more than 2 engines: 1/2 SM visibility. Helicopters: 1/2 SM visibility 3. 121.651 (a)- No pilot may begin takeoff in an airplane under IFR when wx conditions reported by US National Weather Service, a source approved by that service, or a source approved by the Administrator, are less than those specified in (i) the certificate holders ops specs (ii) Parts 91 and 97 if the ops specs do not specify takeoff mins for the airport *97.3 - aircraft approach category 3) Do I need a take-off Alt? (FAR 121.617) - Answer- If wx conditions at the airport of takeoff are below landing minimums in certificate holders ops specs for that airport, can't dispatch aircraft from that airport unless the dispatch or flight release specifies an alternate airport located within the following distances from the airport of takeoff: 1) Aircraft having 2 engines: Not more than 1 hour from departure airport at normal cruising speed in still air with 1 engine inoperative 2) Aircraft having 3+ engines: Not more than 2 hours from the departure airport at normal cruising speed in still air with 1 engine Inoperative 4) Can I dispatch to Destination? (FAR 121.613) - Answer- No person may dispatch for operations under IFR or Over-the-Top, unless appropriate wx reports or forecasts, or any combination thereof, indicate that the wx conditions will be at or above the authorized minimums at the ETA @ the airport or airports to which dispatched......... ((Check wx @ destination airport + compare it to landing minimums there. You look @TAF and landing minimums @ or above minimums you can't land if its lower than minimum, you have to delay or cancel flight)) 5) Do I need a Destination Alternate? (FAR 121.619) - Answer- *1,2,3 Rule* No person may dispatch under IFR or over the top unless he lists at least one alternate for ea. destination airport in the dispatch release. When wx conditions forecast for the destination and first alternate airport are marginal at least one additional alternate must be designated. However, no alt airport is required if for at least 1 hour before and 1 hour after the ETA at the destination airport the appropriate wx reports or forecasts, or any combo of them indicate - - the ceiling will be at least 2,000 ft above airport elevation and, - visibility will be at least 3 miles ((Do we need a back up plan? Look at TAF one hour before and one hour