Joel Reiss
Co-Chief Operating Officer at TransDigm Group
Thanks, Kevin, and good morning. I'll start with our typical review of results by key market category. For the remainder of the call, I'll provide commentary on a pro forma basis compared to the prior year period in 2023. That is assuming we own the same mix of businesses in both periods. In the commercial market, which typically makes up close to 65% of our revenue, we will split our discussion into OEM and aftermarket. Our total commercial OEM revenue increased approximately 23% in Q3 compared with the prior year period. Sequentially, total commercial OEM revenues grew by about 7% compared to Q2. Bookings in the quarter were healthy compared to the same prior year period, and these booking levels continue to support the commercial OEM guidance for revenue growth of around 20% for fiscal '24. OEM supply chain and labor challenges persist, but appear to be improving. As many of you know, concerns have arisen over the past few months around the expected 737 MAX production rate ramp. Time will tell how this plays out. As we shift to both Boeing as well as their sub tiers, the impact across our businesses is somewhat varied. In general, we are seeing monthly bill rates as low as 20 and as high as 42 for parts with extended lead times. Overall, we would estimate an average build rate at the end of Q3 of about 25 aircraft per month. The commercial OEM guidance we are giving today contains an appropriate level of risk around the MAX production build rate for the balance of our fiscal year. We do expect the OEM challenges will have an impact on how quickly they ramp up to their target rates. While we are not yet providing guidance for 2025, we do expect their production rate ramp-up will be slower than we had previously expected. Now, moving on to our commercial aftermarket business discussion. Total commercial aftermarket revenue increased by approximately 11% compared with the prior year period.
Sequentially, total commercial aftermarket revenues grew by about 5% compared to Q2. As a reminder, our commercial aftermarket is made up of four submarkets, passenger, interior, freight and business jet. I would like to provide a bit more color than is historically typical on our commercial aftermarket submarkets. Growth in our passenger submarket, which is our largest was up about 16% versus the prior year period. This submarket continues to perform exceptionally well. Year-to-date, as of our June quarter end, Passenger submarket revenues were up 21% over the comparable prior year period. This compares favorably to the latest IATA passenger traffic data, which shows a year-over-year growth in June of 9.1%.For fiscal Q3, our interior submarket increased roughly 8% when compared to the prior year period. This is primarily driven by repair sales as interior refurbishments have not yet returned to 2019 levels. For fiscal Q3, our business jet submarket increased roughly 10% when compared to the prior year period and reverses the lower number we saw in Q2, highlighting the lumpiness of our commercial aftermarket in any one period. Business Jet does remain a watch item due to the temporary business jet flight activity. These increases were partially offset by declines in our freight submarket, which was down roughly 8%. The freight decline was primarily a result of the continued return of belly [Phonetic] capacity consistent with what we have discussed on our past few earnings calls. On a sequential basis, freight was up 7%.For the full year and as you saw in today's guidance, our outlook for commercial aftermarket growth in the mid-teens is unchanged. We saw a number of elements in our Q3 results that make us confident here. Mainly Q3 bookings to commercial aftermarket were strong, running inline with our expectations and outpacing sales and supporting the full year growth outlook. Additionally, our Q3 point of sales data through our distribution partners was up roughly 25% from the same period last year.
Finally, a reminder, commercial aftermarket can be lumpy on a quarterly basis, both revenue and bookings. We do expect that as passenger traffic has returned to pre-pandemic levels, the commercial aftermarket rate of growth will continue to moderate. Note, that our guide for mid-teens growth across our total commercial aftermarket still incorporates a continued drag, from both cargo and the business jet submarkets for the balance of the year. Turning to broader market dynamics and referencing the most recent IATA traffic data for June. Global revenue passenger miles have continued to surpass pre-pandemic levels since February 2024. June 2024 air traffic was up 3% of the 2019 levels. IATA currently expects traffic to reach 104% of 2019 levels this year and to surpass prior year traffic by 12%.Domestic travel also continues to surpass 2019 levels. In the most recently reported traffic data for June, global domestic air traffic was up 10% compared to pre-pandemic levels, domestic air travel growth has been driven significantly by outsized growth in China, which was up 22% in June compared to 2019. Shifting over to the U.S., domestic travel for June was up about 6% from 2019 air traffic levels. International traffic has generally hovered slightly above or below pre-pandemic levels for the past few months. In the most recently reported data for June, international travel was just slightly below pre-pandemic levels. This is a significant improvement from the 88% of 2019 levels, one year ago. In summary, for the commercial aftermarket, we continue to see strong growth in our passenger and interior submarkets indicative of the continuing positive trends in passenger trends. We expect our freight submarket to remain light in year-over-year comparisons based on current trends in the underlying market. Business jet remains a watch item and may continue to bounce around.
Shifting to our defense market which traditionally is at or below 35% of our total revenue, the defense market revenue, which includes both OEM and aftermarket revenues, grew by approximately 13%, compared with prior year period, and is up 20% year-to-date versus the prior year period. Q3 defense revenue growth was well distributed across our businesses and customer base. Additionally, we saw similar rates of growth in both the OEM and aftermarket components of our total defense market with aftermarket running slightly ahead of OEM. Defense bookings in the quarter were also strong compared to the same prior year period, supporting the revised defense revenue guidance for the full year. Additionally, we saw growth in the US government defense spending outlays during Q3. We are hopeful we will continue to see steady growth here. But as we have said many times before, defense sales and bookings can be lumpy. Forecasting them with accuracy and precision on a quarterly basis is difficult. As Kevin mentioned earlier, we now expect our defense market revenue growth for this year to be in the high-teens percent range. This updated guidance for defense primarily reflects the stronger than expected Q3 defense sales as well as the good Q3 bookings. Next, I will provide a quick update on our recent acquisitions of SEI and the CPI Electron Device business. The SEI and CPI Electron Device business acquisition integrations are both progressing well under the leadership of one of our experienced Executive Vice President, Patrick Murphy. We have owned SEI and the CPI Electron Device businesses for a little over two months, and we are pleased with each acquisition thus far. SEI has been bolted on to one of our existing operating units, DART Aerospace.
We have split the CPI Electron Device business into two operating units. Microwave power products located to Palo Alto and Woodland, California and CPI of Electron Device business located in Beverly, Massachusetts and Middlesex, UK. Although very early in our ownership of these businesses, we are pleased by what we are seeing in the businesses. In closing, I'd like to express how pleased I am by our operational performance in the third quarter of fiscal 2024. Our management teams remain committed to our consistent operating strategy and servicing the robust demand for our products as we continue through the remainder of the year.
With that, I would like to turn it over to our Chief Financial Officer, Sarah Wynne.